Re: [Dnsmasq-discuss] Quicker IPv6 connectivity recovery when using ra-stateless mode
On 17/07/2016 6:21 PM, Toke Høiland-Jørgensen wrote: So I've been noticing that when resuming my laptop from suspend (and reconnecting to the WiFi network), I will get IPv4 connectivity a lot sooner than IPv6. I'm using dnsmasq in ra-stateless mode. Looking at tcpdump output, it seems that my laptop will send a DHCP solicit message (for both IPv4 and IPv6) immediately when the interface connects to the WiFi, and it does get an IPv6 reply from dnsmasq. But it takes a while before a router advertisement arrives, so there will be no default route installed on the laptop. Provided I'm interpreting what is happening correctly, would it be possible to have dnsmasq trigger a router advertisement on an interface whenever it replies to DHCP requests? Not sure if the RA spec allows unicasting advertisements; if it does, unicasting it to the host that asks for DHCP would be a way to cut down on multicast traffic. But simply sending an additional multicast RA would also work, I suppose. -Toke ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss You laptop should send an ipv6 router solicit (which should trigger an advertisement). Do you see this looking at tcpdump for icmpv6? What OS & version is it running? ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Win10 Dhcpv6 issue?
This seems to have just been another Windows 10 Stupid (I thought I'd gotten away with not having any). I followed this article and deleted both DUID keys in the registry and it seems to be able to maintain a lease. https://support.microsoft.com/en-us/kb/2711727 Support page appears to apply to non-updated 7/8/Server 2008R2/Server 2012 too. On 25/06/2016 8:42 PM, Vladislav Grishenko wrote: My bad, it was wrong assumption, sorry. Just checked, dnsmasq doesn’t really support REBIND at all at the moment, fix in 2.72 actually fixed nothing. Best Regards, Vladislav Grishenko *From:*Xander Victory [mailto:xan...@xandervictory.id.au] *Sent:* Saturday, June 25, 2016 5:21 PM *To:* Vladislav Grishenko <themiron...@gmail.com> *Cc:* dnsmasq-discuss@lists.thekelleys.org.uk *Subject:* RE: [Dnsmasq-discuss] Win10 Dhcpv6 issue? No, dnsmasq was one version below current, even updating to current (gentoo patches) nothing changed On Jun 25, 2016 8:19 PM, "Vladislav Grishenko" <themiron...@gmail.com <mailto:themiron...@gmail.com>> wrote: Hi, Xander Not exactly related to Windows 10 ignorance, but according pcap, dnsmasq doesn’t reply to REBIND requests. So, you version seems older than 2.72 where it was fixed, is it? If so, it’s desirable to update to the current latest 2.76. Best Regards, Vladislav Grishenko *From:*Dnsmasq-discuss [mailto:dnsmasq-discuss-boun...@lists.thekelleys.org.uk <mailto:dnsmasq-discuss-boun...@lists.thekelleys.org.uk>] *On Behalf Of *Xander Victory *Sent:* Friday, June 24, 2016 4:21 PM *To:* dnsmasq-discuss@lists.thekelleys.org.uk <mailto:dnsmasq-discuss@lists.thekelleys.org.uk> *Subject:* [Dnsmasq-discuss] Win10 Dhcpv6 issue? I'm having some trouble getting windows 10 to keep its v6 lease, it seem to fail to renew. From packet sniffing it seems to just be ignoring DNSMasq's replies to the renew packets, and then falls back to soliciting continuously, despite being replied to. I've attached the pcap files (hopefully). Shows that it acquires it on reboot, but fails after the lease time is (about to?) expire - set at 2 hours because of issues with the xbox one getting a new address each boot (you can see in the 2nd pcap that it renews its address just fine). Is windows 10 borked or is it something with my config? I'm unsure if this is a recent development or not to be honest. Not exactly related, but I've noticed that DNSMasq sends its v6 packets (router advertisements and dhcpv6) from the full link local address, even though the default address is a manually configured fe80::1 relevant config: dhcp-host=id:00:01:00:01:1a:1b:af:8c:bc:5f:f4:d8:41:bc,[::3],bc:5f:f4:d8:41:bc,10.1.2.6,xander dhcp-range=br0,10.1.2.100,10.1.2.249,255.255.255.0,12h dhcp-range=br0,2001:44b8:610e:3c00::4,2001:44b8:610e:3c00::,2h enable-ra ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Win10 Dhcpv6 issue?
To clarify , dnsmasq version is 2.76. Dnsmasq version 2.76 Copyright (c) 2000-2016 Simon Kelley Compile time options: IPv6 GNU-getopt no-DBus i18n IDN DHCP DHCPv6 no-Lua no-TFTP no-conntrack ipset no-auth no-DNSSEC loop-detect inotify Win10 seems to try to fall back to Rebind anyway, it tries Renew a few times first. It just doesnt seem to like the reply like the xbox does [::b0c5] On 25/06/2016 8:42 PM, Vladislav Grishenko wrote: My bad, it was wrong assumption, sorry. Just checked, dnsmasq doesn’t really support REBIND at all at the moment, fix in 2.72 actually fixed nothing. Best Regards, Vladislav Grishenko *From:*Xander Victory [mailto:xan...@xandervictory.id.au] *Sent:* Saturday, June 25, 2016 5:21 PM *To:* Vladislav Grishenko <themiron...@gmail.com> *Cc:* dnsmasq-discuss@lists.thekelleys.org.uk *Subject:* RE: [Dnsmasq-discuss] Win10 Dhcpv6 issue? No, dnsmasq was one version below current, even updating to current (gentoo patches) nothing changed On Jun 25, 2016 8:19 PM, "Vladislav Grishenko" <themiron...@gmail.com <mailto:themiron...@gmail.com>> wrote: Hi, Xander Not exactly related to Windows 10 ignorance, but according pcap, dnsmasq doesn’t reply to REBIND requests. So, you version seems older than 2.72 where it was fixed, is it? If so, it’s desirable to update to the current latest 2.76. Best Regards, Vladislav Grishenko *From:*Dnsmasq-discuss [mailto:dnsmasq-discuss-boun...@lists.thekelleys.org.uk <mailto:dnsmasq-discuss-boun...@lists.thekelleys.org.uk>] *On Behalf Of *Xander Victory *Sent:* Friday, June 24, 2016 4:21 PM *To:* dnsmasq-discuss@lists.thekelleys.org.uk <mailto:dnsmasq-discuss@lists.thekelleys.org.uk> *Subject:* [Dnsmasq-discuss] Win10 Dhcpv6 issue? I'm having some trouble getting windows 10 to keep its v6 lease, it seem to fail to renew. From packet sniffing it seems to just be ignoring DNSMasq's replies to the renew packets, and then falls back to soliciting continuously, despite being replied to. I've attached the pcap files (hopefully). Shows that it acquires it on reboot, but fails after the lease time is (about to?) expire - set at 2 hours because of issues with the xbox one getting a new address each boot (you can see in the 2nd pcap that it renews its address just fine). Is windows 10 borked or is it something with my config? I'm unsure if this is a recent development or not to be honest. Not exactly related, but I've noticed that DNSMasq sends its v6 packets (router advertisements and dhcpv6) from the full link local address, even though the default address is a manually configured fe80::1 relevant config: dhcp-host=id:00:01:00:01:1a:1b:af:8c:bc:5f:f4:d8:41:bc,[::3],bc:5f:f4:d8:41:bc,10.1.2.6,xander dhcp-range=br0,10.1.2.100,10.1.2.249,255.255.255.0,12h dhcp-range=br0,2001:44b8:610e:3c00::4,2001:44b8:610e:3c00::,2h enable-ra ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Win10 Dhcpv6 issue?
No, dnsmasq was one version below current, even updating to current (gentoo patches) nothing changed On Jun 25, 2016 8:19 PM, "Vladislav Grishenko" <themiron...@gmail.com> wrote: > Hi, Xander > > Not exactly related to Windows 10 ignorance, but according pcap, dnsmasq > doesn’t reply to REBIND requests. > > So, you version seems older than 2.72 where it was fixed, is it? > > If so, it’s desirable to update to the current latest 2.76. > > > > Best Regards, Vladislav Grishenko > > > > *From:* Dnsmasq-discuss [mailto: > dnsmasq-discuss-boun...@lists.thekelleys.org.uk] *On Behalf Of *Xander > Victory > *Sent:* Friday, June 24, 2016 4:21 PM > *To:* dnsmasq-discuss@lists.thekelleys.org.uk > *Subject:* [Dnsmasq-discuss] Win10 Dhcpv6 issue? > > > > I'm having some trouble getting windows 10 to keep its v6 lease, it seem > to fail to renew. > > From packet sniffing it seems to just be ignoring DNSMasq's replies to the > renew packets, and then falls back to soliciting continuously, despite > being replied to. > > I've attached the pcap files (hopefully). Shows that it acquires it on > reboot, but fails after the lease time is (about to?) expire - set at 2 > hours because of issues with the xbox one getting a new address each boot > (you can see in the 2nd pcap that it renews its address just fine). > > Is windows 10 borked or is it something with my config? I'm unsure if this > is a recent development or not to be honest. > > Not exactly related, but I've noticed that DNSMasq sends its v6 packets > (router advertisements and dhcpv6) from the full link local address, even > though the default address is a manually configured fe80::1 > > relevant config: > > > dhcp-host=id:00:01:00:01:1a:1b:af:8c:bc:5f:f4:d8:41:bc,[::3],bc:5f:f4:d8:41:bc,10.1.2.6,xander > dhcp-range=br0,10.1.2.100,10.1.2.249,255.255.255.0,12h > dhcp-range=br0,2001:44b8:610e:3c00::4,2001:44b8:610e:3c00::,2h > enable-ra > ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
[Dnsmasq-discuss] Win10 Dhcpv6 issue?
I'm having some trouble getting windows 10 to keep its v6 lease, it seem to fail to renew. From packet sniffing it seems to just be ignoring DNSMasq's replies to the renew packets, and then falls back to soliciting continuously, despite being replied to. I've attached the pcap files (hopefully). Shows that it acquires it on reboot, but fails after the lease time is (about to?) expire - set at 2 hours because of issues with the xbox one getting a new address each boot (you can see in the 2nd pcap that it renews its address just fine). Is windows 10 borked or is it something with my config? I'm unsure if this is a recent development or not to be honest. Not exactly related, but I've noticed that DNSMasq sends its v6 packets (router advertisements and dhcpv6) from the full link local address, even though the default address is a manually configured fe80::1 relevant config: dhcp-host=id:00:01:00:01:1a:1b:af:8c:bc:5f:f4:d8:41:bc,[::3],bc:5f:f4:d8:41:bc,10.1.2.6,xander dhcp-range=br0,10.1.2.100,10.1.2.249,255.255.255.0,12h dhcp-range=br0,2001:44b8:610e:3c00::4,2001:44b8:610e:3c00::,2h enable-ra win10-dhcp-initial.pcap Description: Binary data win10-dhcp-subsequent-2.pcap Description: Binary data ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
