IPv6 Router Advertisements are not accepted or not processed

[Mark Schouten]

Binary package hint: linux-image-2.6.20-5-generic

Since my upgrade to Feisty, my IPv6 is not working. Other machines in this same network do work with router advertisements. The router doing the advertisements is working:

root@highway:/proc/sys/net/ipv6# tcpdump -i eth1 -vvv -s 512 ip6
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 512 bytes
18:34:36.919252 IP6 (hlim 255, next-header: ICMPv6 (58), length: 56) fe80::201:80ff:fe5f:9b4a > ip6-allnodes: [icmp6 sum ok] ICMP6, router advertisement, length 56
        hop limit 64, Flags [none], pref medium, router lifetime 1800s, reachable time 0s, retrans time 0s
          source link-address option (1), length 8 (1): 00:07:e9:0f:d3:aa
            0x0000: 0007 e90f d3aa
          prefix info option (3), length 32 (4): 2001:7b8:3:1000::/64, Flags [onlink, auto], valid time 2592000s, pref. time 604800s
            0x0000: 40c0 0027 8d00 0009 3a80 0000 0000 2001
            0x0010: 07b8 0003 1000 0000 0000 0000 0000

When configuring the interface using 'ip', IPv6 is working.
ip -6 addr add 2001:7b8:3:1000:202:b3ff:fe10:dbda dev eth1
ip -6 ro add 2001:7b8:3:1000::/64 dev eth1
ip -6 ro add default via fe80::201:80ff:fe5f:9b4a dev eth1

root@highway:/proc/sys/net/ipv6# ping6 -n www.bit.nl
PING www.bit.nl(2001:7b8:3:5::80:3) 56 data bytes
64 bytes from 2001:7b8:3:5::80:3: icmp_seq=1 ttl=60 time=0.706 ms

If more info is needed, please let me know.

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!