I believe I am affected by this issue as well. I have a Google WiFi device as a router, and everything works well for the first few days, with the link-local address used on the Google WiFi's RA used as the IPv6 default route.
After a couple of days however, the Google WiFi device changes its link- local address (for some reason) on the LAN subnet, and although an RA goes out with this new link-local address, NetworkManager still hangs onto the old default route (which is marked "static" as well) and as such I lose IPv6 connectivity to the outside world. I have to run "nmcli conn up Ethernet" to force NM to delete the old default route and use a the new one. Also, if I manually "ip -6 replace default ..." leaving the line otherwise intact as it comes from NM, changing only "proto static" to "proto ra", as soon as the Google WiFi sends another RA, NM re-writes the default as "proto static"- yet does NOT update the actual "via" link-local address to the one the RA came in on. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1101825 Title: IPv6 static default route added incorrectly by network-manager Status in NetworkManager: Fix Released Status in network-manager package in Ubuntu: Confirmed Bug description: The relevant part of the IPv6 routing table looks like this: fe80::/64 dev wlan0 proto kernel metric 256 default via fe80::5054:ff:fe64:aad0 dev wlan0 proto static metric 1 default via fe80::5054:ff:fe9c:741e dev wlan0 proto kernel metric 1024 expires 8sec default via fe80::5054:ff:fe64:aad0 dev wlan0 proto kernel metric 1024 expires 10sec I believe the proto static metric 1 route is an error, since it persists even when the router stops advertising. This breaks the IPv6 architecture for router redundancy. I am in control of this network and can alter router advertisement parameters if needed. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: network-manager 0.9.6.0-0ubuntu7 ProcVersionSignature: Ubuntu 3.5.0-22.34-generic 3.5.7.2 Uname: Linux 3.5.0-22-generic x86_64 ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Sat Jan 19 10:47:05 2013 InstallationDate: Installed on 2012-11-15 (65 days ago) InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2) IpRoute: default via 192.168.4.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.4.0/24 dev wlan0 proto kernel scope link src 192.168.4.64 metric 9 MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: Jan 19 10:17:54 pippin wpa_supplicant[1009]: wlan0: WPA: Group rekeying completed with 00:24:a5:f1:08:8e [GTK=CCMP] mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2012-11-25T12:30:38.408468 nmcli-dev: DEVICE TYPE STATE DBUS-PATH wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/1 eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.6.0 connected enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1101825/+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
