[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
Just now, I was writing memo of the Ubuntu VM in Hyper-V, and read again https://technet.microsoft.com/en-us/windows-server-docs/compute/hyper-v /supported-ubuntu-virtual-machines-on-hyper-v , this time. I found that "TCP Segmentation and Checksum Offloads" are available on Windows Server operating system version " 2016, 2012 R2, 2012, 2008 R2". They do not mention UDP's. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
en, even following https://technet.microsoft.com/en-us/windows-server- docs/compute/hyper-v/supported-ubuntu-virtual-machines-on-hyper-v , and install the virtual kernel: `sudo ethtool eth0` still not able to get the detail info of NIC Settings for eth0: Supported ports: [ ] Supported link modes: Not reported Supported pause frame use: No Supports auto-negotiation: No Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Speed: Unknown! Duplex: Unknown! (255) Port: Other PHYAD: 0 Transceiver: internal Auto-negotiation: off Link detected: yes Besides, 'enp0s3' is shown instead of 'eth0', if the vm is guest of VirtualBox. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
This is probably a bug in the Linux HyperV Card driver. Maybe it's MS job to correct this. I don't know who has responsibility on this package. But, I confirm it is not a bug in the guest hyperV system or windows. I have ipv6 windows servers (multiple versions) and they all work correctly with Ipv6. Even my HyperV Servers are on ipv6 and work fine. On the other hand, if the bug is on Linux, but more widely that only on Hyperv Card driver, we would have heard about it way faster ;) At last, changing a settings with ethtool resolves the problem is pointing the investigation starting point I guess. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 >
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
I've just read this: https://support.microsoft.com/en-hk/kb/2701206 , is it possible that MS should do the fixing? not the side on Linux? Besides, I install Ubuntu 16.04.1 on OpenVZ and VirtualBox, they are working happily, only the guest VM in Hyper-V has this issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
I also confirm this issue. All IPv6 udp are blocked (guest vm by Hyper-V) using frederic-druilhet's comment 11 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584042/comments/11 ethtool --offload eth0 rx off tx off the IPv6 udp works. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6 Nameserver1.MyDomain.domain
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
I can confirm this issue. I'm currently experiencing it with newly installed Ubuntu Server 16.04. I also can confirm that this issue was not present in 14.04. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) …
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
Spotted, sorry :) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:44.725288 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:44.725944 IP6
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
It's at the bottom of the bug description. ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:44.725288 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain:
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
On "client" and "server": Setting up linux-headers-4.6.0-040600 (4.6.0-040600.201605151930) ... Setting up linux-headers-4.6.0-040600-generic (4.6.0-040600.201605151930) ... Setting up linux-image-4.6.0-040600-generic (4.6.0-040600.201605151930) ... root@Server:/# uname -a Linux Server 4.6.0-040600-generic #201605151930 SMP Sun May 15 23:32:59 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux root@Client:/# uname -a Linux Client 4.6.0-040600-generic #201605151930 SMP Sun May 15 23:32:59 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux root@Client:/# ethtool --show-offload eth0 Features for eth0: rx-checksumming: on tx-checksumming: on tx-checksum-ipv4: off [fixed] tx-checksum-ip-generic: on tx-checksum-ipv6: off [fixed] tx-checksum-fcoe-crc: off [fixed] tx-checksum-sctp: off [fixed] root@Client:/# ethtool --offload eth0 rx off tx off Actual changes: rx-checksumming: off tx-checksumming: off root@Server:/# ethtool --offload eth0 rx off tx off Actual changes: rx-checksumming: off tx-checksumming: off oot@Client:/# dig @2001:660:660c:120::2000 testubuntu NS ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @2001:660:660c:120::2000 testubuntu NS ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2664 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 2 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;testubuntu.IN NS ;; ANSWER SECTION: testubuntu. 172800 IN NS server.testubuntu. -- Bug still present upstream !! Confirmed tag: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info:
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
Sorry, on my previous post, I forgot to copy paste this fail before setting offload off: Also, I didn't find where to add the tag kernel-bug-exists-upstream ?? root@Client:/# dig @2001:660:660c:120::2000 testubuntu NS ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @2001:660:660c:120::2000 testubuntu NS ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be reached -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
This issue could exist since a long time. Having only 3 servers, each nameserver, did hide the problem (as each could resolve) In my numerous tests, I made a virtual machine using an old Ubuntu server 15.04 and the problem was present. But,in the meanwhile, my bind server was having troubles (rx/tx activated). So I don't know if its due to 15.04 or the production bind server I'll try to test on the upstream build as soon as possible. I'll tell you -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362:
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.6 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety ** Tags added: kernel-da-key kernel-hyper-v ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
root@Client:/home/ssi# uname -a Linux Client 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux root@Client:/home/ssi# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:Ubuntu 16.04 LTS Release:16.04 Codename: denial root@Client:/home/ssi# lsblk -o NAME,SIZE NAME SIZE fd0 4K sda 15G ├─sda1 487M ├─sda2 1K └─sda514.5G ├─Client--vg-root 13.5G └─Client--vg-swap_11G sr0 1024M root@Client:/home/ssi# lspci 00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (AGP disabled) (rev 03) 00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 01) 00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01) 00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02) 00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual VGA root@Client:/home/ssi# lshw -sanitize computer description: Computer width: 64 bits capabilities: smbios-2.3 vsyscall32 *-core description: Motherboard physical id: 0 *-memory description: System memory physical id: 0 size: 983MiB *-cpu product: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz vendor: Intel Corp. physical id: 1 bus info: cpu@0 width: 64 bits capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx x86-64 constant_tsc rep_good nopl pni ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm *-pci description: Host bridge product: 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (AGP disabled) vendor: Intel Corporation physical id: 100 bus info: pci@:00:00.0 version: 03 width: 32 bits clock: 33MHz *-isa description: ISA bridge product: 82371AB/EB/MB PIIX4 ISA vendor: Intel Corporation physical id: 7 bus info: pci@:00:07.0 version: 01 width: 32 bits clock: 33MHz capabilities: isa bus_master configuration: latency=0 *-ide description: IDE interface product: 82371AB/EB/MB PIIX4 IDE vendor: Intel Corporation physical id: 7.1 bus info: pci@:00:07.1 version: 01 width: 32 bits clock: 33MHz capabilities: ide bus_master configuration: driver=ata_piix latency=0 resources: irq:0 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:ffa0(size=16) *-bridge UNCLAIMED description: Bridge product: 82371AB/EB/MB PIIX4 ACPI vendor: Intel Corporation physical id: 7.3 bus info: pci@:00:07.3 version: 02 width: 32 bits clock: 33MHz capabilities: bridge configuration: latency=0 *-display description: VGA compatible controller product: Hyper-V virtual VGA vendor: Microsoft Corporation physical id: 8 bus info: pci@:00:08.0 version: 00 width: 32 bits clock: 33MHz capabilities: vga_controller bus_master rom configuration: driver=hyperv_fb latency=0 resources: irq:11 memory:f800-fbff *-scsi:0 physical id: 2 logical name: scsi1 capabilities: emulated *-cdrom description: DVD reader physical id: 0.0.0 bus info: scsi@1:0.0.0 logical name: /dev/cdrom logical name: /dev/dvd logical name: /dev/sr0 capabilities: audio dvd configuration: status=nodisc *-scsi:1 physical id: 3 logical name: scsi2 *-disk description: SCSI Disk physical id: 0.0.0 bus info: scsi@2:0.0.0 logical name: /dev/sda size: 15GiB (16GB) capabilities: partitioned partitioned:dos configuration: logicalsectorsize=512 sectorsize=4096 signature=053b3857 *-volume:0 description: Linux filesystem partition vendor: Linux physical id: 1 bus info: scsi@2:0.0.0,1 logical name: /dev/sda1 logical name: /boot version: 1.0 serial: [REMOVED] size: 487MiB capacity: 487MiB capabilities: primary bootable
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
Please at least report your kernel version. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Confirmed Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:44.725288 IP6 StandAloneServer.MyDomain.35362 >
[Kernel-packages] [Bug 1584042] Re: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled
Hi ! I'sorry but I can't apport-collect; Due to ipv4 adress lack and network isolation, my servers are setup ipv6 only and launchpad.net only resolves in ipv4 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled Status in linux package in Ubuntu: Incomplete Bug description: Hi, On a client server, I can't get a response from a name server in ipv6+udp. On the same server, it works fine in tcp. If I log on my name server, I can get a response from himself but, as a client, it can't get a response from another name server. here are the steps to reproduce : - Create a new server using Ubuntu server 16.04. Set it to use ipv4 and use your preferred name server. Select absolutely nothing as functionality. - check some nslookup and apt-get stuff to verify network is OK - add ipv6 to the interface and refer to an IPV6 nameserver. I have 3 and thats why I noticed the problem >> All 3 ipv6 nameservers are filling the 3 places in resolv.conf. - if you don't have 3 ipv6 nameservers, just add one and comment the line with the ipv4 name server. - verify your resolv.conf. Should only content ipv6 reference. - Now, you can't nslookup anymore... - add some tests : "dig @ipv4server google.com" works but "dig @ipv6server google.com" don't Here a more tests : Nameserver1 : Nameserver1.MyDomain : XXX.YYY.ZZZ.250 / ::::250 ClientStandAloneServer.MyDomain : XXX.YYY.ZZZ.209 / ::::209 With IPV4 # dig @XXX.YYY.ZZZ.226 www.google.fr /var/log/named/queries.log on Nameserver1: 20-May-2016 12:25:02.834 queries: info: client XXX.YYY.ZZZ.209#35116 (www.google.fr): query: www.google.fr IN A +E (XXX.YYY.ZZZ.226) Tcp Dump on Nameserver1: 12:25:02.834092 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.834395 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client 12:25:02.668200 IP StandAloneServer.MyDomain.35116 > Nameserver1.MyDomain.domain: 62949+ [1au] A? www.google.fr. (42) 12:25:02.669573 IP Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35116: 62949 1/4/5 A 216.58.210.195 (204) RESULT: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @XXX.YYY.ZZZ.226 www.google.fr ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49591 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.google.fr. IN A ;; ANSWER SECTION: www.google.fr.300 IN A 216.58.210.195 ;; AUTHORITY SECTION: google.fr.171625 IN NS ns1.google.com. [TRUNCATED] WITH IPV6 # dig @::::226 www.google.fr NOTE : I only asked once, it created 3 queries with 5 secs d’intervalle environ /var/log/named/queries.log on Nameserver1: 20-May-2016 12:32:34.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:39.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) 20-May-2016 12:32:44.902 queries: info: client ::::209#35362 (www.google.fr): query: www.google.fr IN A +E (::::226) Tcp Dump on Nameserver1: 12:32:34.902598 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.902994 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.902644 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.902975 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) Tcp Dump on Client12:32:34.725312 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:34.726036 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) … 12:32:39.725199 IP6 StandAloneServer.MyDomain.35362 > Nameserver1.MyDomain.domain: 23393+ [1au] A? www.google.fr. (42) 12:32:39.726045 IP6 Nameserver1.MyDomain.domain > StandAloneServer.MyDomain.35362: 23393 1/4/5 A 216.58.210.195 (204) …
