I ran into the same problem with 17.10 and I solved it without any fixed or workarounds. But this is not an ubuntu bug! It's a false configuration. There are 2 Options for automatic IPv6 configuration in network manager. "Automatic" and "Automatic (DHCP only)". IPv6 router advertisment is not part of dhcpv6 by spec! So I switch my config to "Automatic" which uses dhcpv6 and router advertisment. The kernel option /proc/sys/net/ipv6/conf/ethX/accept_ra is set to 1 (active) then! Problem solved!
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1193205 Title: dhcp IPv6 sets accept_ra to 0 and doesn't get IPv6 route Status in network-manager package in Ubuntu: Triaged Bug description: Configure IPv6 network so that the IP address is obtained through DHCPv6 and setup NetworkManager IPv6 to use the "Automatic (DHCP only)" method. accept_ra is then set to 0 and NetworkManager fails to obtain the IPv6 route. Attached is a script /etc/NetworkManager/dispatcher.d/02allowIPv6route which works around the issue to set accept_ra to 1. I am running Kubuntu 13.04, but I believe the bug is not limited to this release. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1193205/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
