Mailing List Archive: IPv6 router advertisement broken on 2.6.20-rc5

IPv6 router advertisement broken on 2.6.20-rc5

aurelien at aurel32

Jan 16, 2007, 1:42 PM

Post #1 of 7 (1127 views)

Hi all,

I have just tried a 2.6.20-rc5 kernel (I previously used a 2.6.19 one),
and I have noticed that the IPv6 router advertisement functionality is
broken. The interface is not attributed an IPv6 address anymore, despite
/proc/sys/net/ipv6/conf/all/ra_accept being set to 1 (also true for each
individual interface configuration).

Using tcpdump, I am seeing the router advertisement messages arriving on
the interface, but they seems to be ignored.

Does somebody have also seen this behaviour?

Bye,
Aurelien

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Re: IPv6 router advertisement broken on 2.6.20-rc5 [ In reply to ]

Jan 16, 2007, 2:45 PM

Post #2 of 7 (1074 views)

Aurelien Jarno wrote:
> I have just tried a 2.6.20-rc5 kernel (I previously used a 2.6.19 one),
> and I have noticed that the IPv6 router advertisement functionality is
> broken. The interface is not attributed an IPv6 address anymore, despite
> /proc/sys/net/ipv6/conf/all/ra_accept being set to 1 (also true for each
> individual interface configuration).
>
> Using tcpdump, I am seeing the router advertisement messages arriving on
> the interface, but they seems to be ignored.

ACK as far as seeing the same thing. Another symptom: ping6 to the
link-local all-nodes address (ff02::1) is similarly broken. tcpdump
shows the packets on the wire, but there's no response. The most
recent kernel from kernel.org where IPv6 seems to be behaving properly
is 2.6.20-rc3.

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Re: IPv6 router advertisement broken on 2.6.20-rc5 [ In reply to ]

bert.hubert at netherlabs

Jan 16, 2007, 3:30 PM

Post #3 of 7 (1072 views)

On Tue, Jan 16, 2007 at 10:42:53PM +0100, Aurelien Jarno wrote:

> I have just tried a 2.6.20-rc5 kernel (I previously used a 2.6.19 one),
> and I have noticed that the IPv6 router advertisement functionality is

Can you check if rc1, rc2, rc3 etc do work?

Thanks.

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Re: IPv6 router advertisement broken on 2.6.20-rc5 [ In reply to ]

aurelien at aurel32

Jan 16, 2007, 3:42 PM

Post #4 of 7 (1086 views)

On Wed, Jan 17, 2007 at 12:30:53AM +0100, bert hubert wrote:
> On Tue, Jan 16, 2007 at 10:42:53PM +0100, Aurelien Jarno wrote:
>
> > I have just tried a 2.6.20-rc5 kernel (I previously used a 2.6.19 one),
> > and I have noticed that the IPv6 router advertisement functionality is
>
> Can you check if rc1, rc2, rc3 etc do work?

Will do that, but probably not in a very short timeframe (in other words
next evening, in about 20 hours).

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Re: IPv6 router advertisement broken on 2.6.20-rc5 [ In reply to ]

samudrala.sridhar at gmail

Jan 16, 2007, 3:48 PM

Post #5 of 7 (1076 views)

I think the following patch

[IPV6] MCAST: Fix joining all-node multicast group on device initialization.
http://www.spinics.net/lists/netdev/msg22663.html

that went in after 2.6.20-rc5 should fix this problem.

Thanks
Sridhar

On 1/16/07, bert hubert <bert.hubert@netherlabs.nl> wrote:
> On Tue, Jan 16, 2007 at 10:42:53PM +0100, Aurelien Jarno wrote:
>
> > I have just tried a 2.6.20-rc5 kernel (I previously used a 2.6.19 one),
> > and I have noticed that the IPv6 router advertisement functionality is
>
> Can you check if rc1, rc2, rc3 etc do work?
>
> Thanks.
>
> --
> http://www.PowerDNS.com Open source, database driven DNS Software
> http://netherlabs.nl Open and Closed source services
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> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
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>
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Re: IPv6 router advertisement broken on 2.6.20-rc5 [ In reply to ]

Jan 16, 2007, 4:03 PM

Post #6 of 7 (1087 views)

Aurelien Jarno wrote:
> Hi all,
>
> I have just tried a 2.6.20-rc5 kernel (I previously used a 2.6.19 one),
> and I have noticed that the IPv6 router advertisement functionality is
> broken. The interface is not attributed an IPv6 address anymore, despite
> /proc/sys/net/ipv6/conf/all/ra_accept being set to 1 (also true for each
> individual interface configuration).

Probably fixed by
https://bugs.gentoo.org/attachment.cgi?id=107087&action=view

Daniel

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Re: IPv6 router advertisement broken on 2.6.20-rc5 [ In reply to ]

aurelien at aurel32

Jan 17, 2007, 2:14 PM

Post #7 of 7 (1072 views)

Sridhar Samudrala a écrit :
> I think the following patch
>
> [IPV6] MCAST: Fix joining all-node multicast group on device initialization.
> http://www.spinics.net/lists/netdev/msg22663.html
>
> that went in after 2.6.20-rc5 should fix this problem.
>

Yep that fixes the problem. Thanks a lot.

Aurelien

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