** Description changed: I've noticed this for a while when switching from wired to wireless ethernet on a number of different laptops and architectures (as well as versions of ubuntu - at least 10.10 and 10.04 and probably a few others - previous). I am disconnecting from eth0 (physically unplugging the - cable), and the v6 routes associated with this interface are not being - removed from the kernel routing table. This includes the /64 physically - connected subnet's route as well as the default route. It is also - keeping the v6 interface addr for eth0 despite the link being down. The - v4 connected routes and addresses do not persist after the media is - disconnected. + previous). + + I am disconnecting from eth0 (physically unplugging the cable), and the + v6 routes associated with this interface are not being removed from the + kernel routing table. This includes the /64 physically connected + subnet's route as well as the default route. It is also keeping the v6 + interface addr for eth0 despite the link being down. The v4 connected + routes and addresses do not persist after the media is disconnected. + + This results in broken IPv6 connectivity to the local subnet as well as + the Internet at large. Please see the output below r...@nova-rrawdon:~$ ip -6 addr sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qlen 1000 inet6 2001:470:8:769:5e26:aff:fe08:562d/64 scope global dynamic valid_lft 2591902sec preferred_lft 604702sec inet6 fe80::5e26:aff:fe08:562d/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 fe80::c2cb:38ff:fe06:f14/64 scope link valid_lft forever preferred_lft forever r...@nova-rrawdon:~$ ip -6 ro sh 2001:470:8:769::/64 dev eth0 proto kernel metric 256 expires 2591570sec mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 dev eth1 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 default via fe80::200:24ff:feca:dcb8 dev eth0 proto kernel metric 1024 expires 1370sec mtu 1500 advmss 1440 hoplimit 64 r...@nova-rrawdon:~$ ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 5c:26:0a:08:56:2d brd ff:ff:ff:ff:ff:ff 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether c0:cb:38:06:0f:14 brd ff:ff:ff:ff:ff:ff 5: vboxnet0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 0a:00:27:00:00:00 brd ff:ff:ff:ff:ff:ff r...@nova-rrawdon:~$ uname -a Linux nova-rrawdon 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC 2010 x86_64 GNU/Linux r...@nova-rrawdon:~$ cat /proc/version_signature Ubuntu 2.6.35-22.34-generic 2.6.35.4 ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.34 Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ryan 2084 F.... pulseaudio /dev/snd/pcmC0D0p: ryan 2084 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe9660000 irq 47' Mixer name : 'IDT 92HD81B1C5' Components : 'HDA:111d76d5,1028040a,00100104' Controls : 14 Simple ctrls : 9 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xe3080000 irq 17' Mixer name : 'Nvidia GT21x HDMI' Components : 'HDA:10de000b,10de0101,00100200' Controls : 16 Simple ctrls : 4 Date: Sun Oct 24 15:02:46 2010 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=06538aad-e115-4245-b93a-e3fdf592401b InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100831.2) MachineType: Dell Inc. Latitude E6410 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=ecdab842-1204-4e81-9362-a48418ff725a ro quiet splash nomodeset ProcEnviron: LANGUAGE= PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.38 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux dmi.bios.date: 07/08/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0K42JR dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA04:bd07/08/2010:svnDellInc.:pnLatitudeE6410:pvr0001:rvnDellInc.:rn0K42JR:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6410 dmi.product.version: 0001 dmi.sys.vendor: Dell Inc.
** Description changed: I've noticed this for a while when switching from wired to wireless ethernet on a number of different laptops and architectures (as well as versions of ubuntu - at least 10.10 and 10.04 and probably a few others previous). I am disconnecting from eth0 (physically unplugging the cable), and the v6 routes associated with this interface are not being removed from the kernel routing table. This includes the /64 physically connected subnet's route as well as the default route. It is also keeping the v6 interface addr for eth0 despite the link being down. The v4 connected routes and addresses do not persist after the media is disconnected. This results in broken IPv6 connectivity to the local subnet as well as the Internet at large. + + Personally I am not familiar enough with the mechanisms at hand, the + mismatched behavior between v4 and v6 may be related more to Network + Manager and not so much the kernel. Please see the output below r...@nova-rrawdon:~$ ip -6 addr sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qlen 1000 inet6 2001:470:8:769:5e26:aff:fe08:562d/64 scope global dynamic valid_lft 2591902sec preferred_lft 604702sec inet6 fe80::5e26:aff:fe08:562d/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 fe80::c2cb:38ff:fe06:f14/64 scope link valid_lft forever preferred_lft forever r...@nova-rrawdon:~$ ip -6 ro sh 2001:470:8:769::/64 dev eth0 proto kernel metric 256 expires 2591570sec mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 dev eth1 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 4294967295 default via fe80::200:24ff:feca:dcb8 dev eth0 proto kernel metric 1024 expires 1370sec mtu 1500 advmss 1440 hoplimit 64 r...@nova-rrawdon:~$ ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 5c:26:0a:08:56:2d brd ff:ff:ff:ff:ff:ff 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether c0:cb:38:06:0f:14 brd ff:ff:ff:ff:ff:ff 5: vboxnet0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 0a:00:27:00:00:00 brd ff:ff:ff:ff:ff:ff r...@nova-rrawdon:~$ uname -a Linux nova-rrawdon 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC 2010 x86_64 GNU/Linux r...@nova-rrawdon:~$ cat /proc/version_signature Ubuntu 2.6.35-22.34-generic 2.6.35.4 ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.34 Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ryan 2084 F.... pulseaudio /dev/snd/pcmC0D0p: ryan 2084 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe9660000 irq 47' Mixer name : 'IDT 92HD81B1C5' Components : 'HDA:111d76d5,1028040a,00100104' Controls : 14 Simple ctrls : 9 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xe3080000 irq 17' Mixer name : 'Nvidia GT21x HDMI' Components : 'HDA:10de000b,10de0101,00100200' Controls : 16 Simple ctrls : 4 Date: Sun Oct 24 15:02:46 2010 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=06538aad-e115-4245-b93a-e3fdf592401b InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100831.2) MachineType: Dell Inc. Latitude E6410 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=ecdab842-1204-4e81-9362-a48418ff725a ro quiet splash nomodeset ProcEnviron: LANGUAGE= PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.38 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux dmi.bios.date: 07/08/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A04 dmi.board.name: 0K42JR dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA04:bd07/08/2010:svnDellInc.:pnLatitudeE6410:pvr0001:rvnDellInc.:rn0K42JR:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6410 dmi.product.version: 0001 dmi.sys.vendor: Dell Inc. -- ipv6 routes persist after media disconnect https://bugs.launchpad.net/bugs/665999 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
