On Sat, 13 Jan 2007, Pekka Savola wrote:
FC6 updates-testing kernel based on 2.6.19.2 (kernel-2.6.19-1.2895.fc6) seems
to have a broken IPv6 stateless address autoconf. The previous, successfully
tested version was based on 2.6.18.5 (kernel-2.6.18-1.2860.fc6).
The problem appears to be that the host is not joining the all-nodes
multicast address (ff02::1) [netstat -g -n], so the IP layer isn't processing
the received router advertisements even though you can see them with tcpdump.
The solicited node mcast address is joined though. Loopback interface doesn't
join ff02::1 either.
linux-2.6-xen.patch at least seems to be making some modifications to IPv6 ND
code, but I didn't look closely enough if that's the culprit.
If it matters, the network adapter is Realtek 8139.
Two more bits of information:
- one person commented off-list that for him, breakage happened
between 2.6.19.1 and 2.6.19.2.
- kernel-2.6.20rc4-git4 [latest from devel kernel-2.6.19-1.2911] is
also similarly affected.
--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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