[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
hmm, i can't reproduce this anymore, it seems one of my other patches to bionic fixed the problem. @ivoks, or anyone else, if you still see this with the latest systemd in bionic, please let me know. ** Changed in: systemd (Ubuntu Bionic) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: Fix Released Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Changed in: systemd (Ubuntu) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
as disco is EOL next week, marking this won't fix for disco. ** Changed in: systemd (Ubuntu Disco) Status: In Progress => Won't Fix -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: Won't Fix Status in systemd source package in Eoan: Fix Released Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Changed in: systemd (Ubuntu Disco) Importance: Medium => High ** Changed in: systemd (Ubuntu Bionic) Importance: Medium => High -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: Fix Released Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
This bug was fixed in the package systemd - 242-7ubuntu3.2 --- systemd (242-7ubuntu3.2) eoan; urgency=medium [ Dan Streetman ] * d/extra/dhclient-enter-resolved-hook: - Replace use of bash-only &> with > and 2> (LP: #1849608) * d/p/lp1849658-resolved-set-stream-type-during-DnsStream-creation.patch: - Fix bug in refcounting TCP stream types (LP: #1849658) * d/extra/dhclient-enter-resolved-hook: cleanup temp $newstate file [ Rafael David Tinoco ] * Add support to KeepConfiguration= fixing behaviour for HA (LP: #1815101) - d/p/lp1815101-01-networkd-add-support-to-keep-configuration.patch - d/p/lp1815101-02-networkd-stop-clients-when-networkd-shuts-down.patch - d/p/lp1815101-03-network-add-KeepConfiguration-dhcp-on-stop.patch - d/p/lp1815101-04-network-make-KeepConfiguration-static-drop-DHCP-addr.patch - d/p/lp1815101-05-man-add-documentation-about-KeepConfiguration.patch systemd (242-7ubuntu3.1) eoan; urgency=medium [ Balint Reczey ] * Fix shutdown and related actions from the login screen (LP: #1847896) File: debian/patches/logind-consider-greeter-sessions-suitable-as-display-sess.patch https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=b407dfd8c9dc81594553c27467c35b38d74c * debian/gbp.conf: Set debian-branch to ubuntu-eoan File: debian/gbp.conf https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=f399ce2cf4701a2dbb4b3505d2dd17a210d62f5c [ Dan Streetman ] * Fix bogus routes after DHCP lease change (LP: #1831787) Files: - debian/patches/lp1831787/0001-networkd-Add-back-static-routes-after-DHCPv4-lease-e.patch - debian/patches/lp1831787/0002-network-set-preferred-source-in-removing-route-entry.patch - debian/patches/lp1831787/0003-network-lower-log-level-about-critical-connection.patch - debian/patches/lp1831787/0004-network-reset-Link-dhcp4_configured-flag-earlier.patch - debian/patches/lp1831787/0005-network-split-dhcp_lease_lost-into-small-pieces.patch https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=ced3f5c2f619083f7beb164d94d4ccfe5fe8 * Set src address for dhcp 'classless' routes (LP: #1835581) File: debian/patches/lp1835581-src-network-networkd-dhcp4.c-set-prefsrc-for-classle.patch https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=6a7ef370fb1335548448920be4ae6176b67044a8 * Allows cache=no-negative option to be set, ignoring negative answers to be cached (LP: #1668771) File: debian/patches/lp1668771-resolved-switch-cache-option-to-a-tri-state-option-s.patch https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=27def26f5b1d1b8ba314c4a925fc1b7c43837f86 -- Dan Streetman Fri, 01 Nov 2019 16:33:08 -0400 ** Changed in: systemd (Ubuntu Eoan) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: Fix Released Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
with dnsmasq server setup: $ ip -4 a show ens8 3: ens8: mtu 1500 qdisc fq_codel state UP group default qlen 1000 inet 1.2.3.1/24 scope global ens8 valid_lft forever preferred_lft forever $ cat /etc/dnsmasq.d/test interface=ens8 bind-dynamic no-resolv no-poll domain=test,1.2.3.4/24 dhcp-range=test,1.2.3.100,1.2.3.199,1m dhcp-host=52:54:00:f7:b2:99,1.2.3.50,1m on the test system: ubuntu@lp1831787-e:~$ dpkg -l systemd | grep ii ii systemd242-7ubuntu3.2 amd64system and service manager ubuntu@lp1831787-e:~$ ip -4 a show dev ens8 3: ens8: mtu 1500 qdisc fq_codel state UP group default qlen 1000 inet 1.2.3.50/24 brd 1.2.3.255 scope global dynamic ens8 valid_lft 106sec preferred_lft 106sec ubuntu@lp1831787-e:~$ ip -4 r default via 1.2.3.1 dev ens8 proto dhcp src 1.2.3.50 metric 1024 1.2.3.0/24 dev ens8 proto kernel scope link src 1.2.3.50 1.2.3.1 dev ens8 proto dhcp scope link src 1.2.3.50 metric 1024 then on dnsmasq server, change the test system addr to .60: $ cat /etc/dnsmasq.d/test interface=ens8 bind-dynamic no-resolv no-poll domain=test,1.2.3.4/24 dhcp-range=test,1.2.3.100,1.2.3.199,1m dhcp-host=52:54:00:f7:b2:99,1.2.3.60,1m ubuntu@dhcp-test:~$ sudo systemctl restart dnsmasq on test system, wait for dhcp lease to timeout: ubuntu@lp1831787-e:~$ ip -4 a show dev ens8 3: ens8: mtu 1500 qdisc fq_codel state UP group default qlen 1000 inet 1.2.3.60/24 brd 1.2.3.255 scope global dynamic ens8 valid_lft 114sec preferred_lft 114sec ubuntu@lp1831787-e:~$ ip -4 r default via 1.2.3.1 dev ens8 proto dhcp src 1.2.3.60 metric 1024 1.2.3.0/24 dev ens8 proto kernel scope link src 1.2.3.60 1.2.3.1 dev ens8 proto dhcp scope link src 1.2.3.60 metric 1024 ** Tags removed: verification-needed verification-needed-eoan ** Tags added: verification-done verification-done-eoan -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: Fix Committed Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
Hello Ante, or anyone else affected, Accepted systemd into eoan-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/242-7ubuntu3.2 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-eoan to verification-done-eoan. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-eoan. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: systemd (Ubuntu Eoan) Status: In Progress => Fix Committed ** Tags added: verification-needed verification-needed-eoan -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: Fix Committed Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. Note this also happens without changing the entire subnet, but is more subtle as shown in the original description. [regression potential] this affects how networkd handles routes, so has the potential to leave a system with partial or incorrect networking, or no networking at all. Any regression would most likely occur during networkd (re)start or during renewal of a DHCP lease, or when an interface is brought up. [other info] original description: --- Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Description changed: + [impact] + + networkd does not remove old route(s) after DHCP address change + + [test case] + + on a system using networkd, that is connected to a network where you can + control the addresses that the DHCP server provides, setup system with + networkd to get address via DHCP, e.g. + + [Match] + Name=ens3 + + [Network] + DHCP=ipv4 + + + (re)start networkd or reboot, so the system gets an ipv4 DHCP address, and corresponding route to the gateway. + + + Then on the dhcp server, change the subnet to a different subnet. On the client, once its renews its DHCP address, the server will provide a new address in the new subnet, and the client will add a new default route to the new gateway address. However, the old default route to the old gateway address isn't removed. + + Note this also happens without changing the entire subnet, but is more + subtle as shown in the original description. + + [regression potential] + + this affects how networkd handles routes, so has the potential to leave + a system with partial or incorrect networking, or no networking at all. + Any regression would most likely occur during networkd (re)start or + during renewal of a DHCP lease, or when an interface is brought up. + + [other info] + + original description: + --- + + Netplan config: network: - version: 2 - renderer: networkd - ethernets: - eno4: - dhcp4: no - eno1np0: - dhcp4: no - addresses: - - 172.16.0.2/24 - bridges: - br0: - dhcp4: yes - interfaces: - - eno4 + version: 2 + renderer: networkd + ethernets: + eno4: + dhcp4: no + eno1np0: + dhcp4: no + addresses: + - 172.16.0.2/24 + bridges: + br0: + dhcp4: yes + interfaces: + - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r - default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 - default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 - 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 - 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 - 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 - 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 + default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 + default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 + 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 + 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 + 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 + 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: In Progress Bug description: [impact] networkd does not remove old route(s) after DHCP address change [test case] on a system using networkd, that is connected to a network where you can control the addresses that the DHCP server provides, setup system with networkd to get address via DHCP, e.g. [Match] Name=ens3 [Network] DHCP=ipv4 (re)start networkd or reboot, so the system gets an ipv4
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Merge proposal linked: https://code.launchpad.net/~ddstreet/ubuntu/+source/systemd/+git/systemd/+merge/374312 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: In Progress Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Merge proposal linked: https://code.launchpad.net/~ddstreet/ubuntu/+source/systemd/+git/systemd/+merge/370152 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: In Progress Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Merge proposal linked: https://code.launchpad.net/~ddstreet/ubuntu/+source/systemd/+git/systemd/+merge/374303 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: In Progress Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Tags added: bionic disco eoan next-ddstreet systemd ** Tags removed: next-ddstreet ** Tags added: ddstreet ** Changed in: systemd (Ubuntu Disco) Status: New => In Progress ** Changed in: systemd (Ubuntu Bionic) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: In Progress Status in systemd source package in Disco: In Progress Status in systemd source package in Eoan: In Progress Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Changed in: systemd (Ubuntu Eoan) Status: Triaged => In Progress ** Changed in: systemd (Ubuntu Disco) Assignee: (unassigned) => Dan Streetman (ddstreet) ** Changed in: systemd (Ubuntu Bionic) Assignee: (unassigned) => Dan Streetman (ddstreet) ** Changed in: systemd (Ubuntu Disco) Importance: Undecided => Medium ** Changed in: systemd (Ubuntu Bionic) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: In Progress Status in systemd source package in Bionic: New Status in systemd source package in Disco: New Status in systemd source package in Eoan: In Progress Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Also affects: systemd (Ubuntu Eoan) Importance: High Assignee: Dan Streetman (ddstreet) Status: Triaged ** Also affects: systemd (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: systemd (Ubuntu Bionic) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: Triaged Status in systemd source package in Bionic: New Status in systemd source package in Disco: New Status in systemd source package in Eoan: Triaged Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Also affects: systemd via https://github.com/systemd/systemd/issues/12490 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd: Unknown Status in systemd package in Ubuntu: Triaged Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Changed in: systemd (Ubuntu) Assignee: (unassigned) => Dan Streetman (ddstreet) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd package in Ubuntu: Triaged Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
** Changed in: netplan Status: Incomplete => Invalid ** Changed in: systemd (Ubuntu) Importance: Undecided => High ** Changed in: systemd (Ubuntu) Status: Incomplete => Triaged -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Invalid Status in systemd package in Ubuntu: Triaged Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
It's exactly the same as that systemd issue. ** Attachment added: "log" https://bugs.launchpad.net/netplan/+bug/1831787/+attachment/5269074/+files/log -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Incomplete Status in systemd package in Ubuntu: Incomplete Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1831787] Re: Bogus routes after DHCP lease change
Looks like this issue, I think: https://github.com/systemd/systemd/issues/12490 ** Also affects: systemd (Ubuntu) Importance: Undecided Status: New ** Changed in: systemd (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1831787 Title: Bogus routes after DHCP lease change Status in netplan: Incomplete Status in systemd package in Ubuntu: Incomplete Bug description: Netplan config: network: version: 2 renderer: networkd ethernets: eno4: dhcp4: no eno1np0: dhcp4: no addresses: - 172.16.0.2/24 bridges: br0: dhcp4: yes interfaces: - eno4 On initial boot, machine got 10.0.15.109 IP address: May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: Configured May 03 13:09:41 ceph2 systemd-networkd[29349]: br0: DHCPv4 address 10.0.15.109/23 via 10.0.15.253 At one point, DHCP server reserver this IP address and client eventually picked up new IP address: May 03 15:01:12 ceph2 systemd-networkd[1137]: br0: DHCPv4 address 10.0.15.128/23 via 10.0.15.253 This resulted in IP addresses: # ip -o a 1: loinet 127.0.0.1/8 scope host lo\ valid_lft forever preferred_lft forever 1: loinet6 ::1/128 scope host \ valid_lft forever preferred_lft forever 2: eno1np0inet 172.16.0.2/24 brd 172.16.0.255 scope global eno1np0\ valid_lft forever preferred_lft forever 2: eno1np0inet6 fe80::b226:28ff:fe53:56be/64 scope link \ valid_lft forever preferred_lft forever 6: br0inet 10.0.15.128/23 brd 10.0.15.255 scope global dynamic br0\ valid_lft 503sec preferred_lft 503sec 6: br0inet6 fe80::b8d7:5eff:fe6b:62a/64 scope link \ valid_lft forever preferred_lft forever So far, everything is fine. But, the routes on the machine are bogus: # ip r default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.109 metric 100 default via 10.0.15.253 dev br0 proto dhcp src 10.0.15.128 metric 100 10.0.14.0/23 dev br0 proto kernel scope link src 10.0.15.128 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.109 metric 100 10.0.15.253 dev br0 proto dhcp scope link src 10.0.15.128 metric 100 172.16.0.0/24 dev eno1np0 proto kernel scope link src 172.16.0.2 routes with src 10.0.15.109 should have been removed when lease was renewed. I'm not sure if this is a bug in netplan or systemd. This is 18.04, systemd 37-3ubuntu10.21, netplan 0.40.1~18.04.4. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1831787/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp