2007-01-16 22:31:00

by Aurelien Jarno

[permalink] [raw]
Subject: IPv6 router advertisement broken on 2.6.20-rc5

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

--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' [email protected] | [email protected]
`- people.debian.org/~aurel32 | http://www.aurel32.net


2007-01-16 22:45:20

by Bob Tracy

[permalink] [raw]
Subject: Re: IPv6 router advertisement broken on 2.6.20-rc5

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.

--
-----------------------------------------------------------------------
Bob Tracy WTO + WIPO = DMCA? http://www.anti-dmca.org
[email protected]
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2007-01-16 23:30:56

by bert hubert

[permalink] [raw]
Subject: Re: IPv6 router advertisement broken on 2.6.20-rc5

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

2007-01-16 23:48:33

by Sridhar Samudrala

[permalink] [raw]
Subject: Re: IPv6 router advertisement broken on 2.6.20-rc5

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 <[email protected]> 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
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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>

2007-01-17 00:01:47

by Daniel Drake

[permalink] [raw]
Subject: Re: IPv6 router advertisement broken on 2.6.20-rc5

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

2007-01-17 00:31:00

by Aurelien Jarno

[permalink] [raw]
Subject: Re: IPv6 router advertisement broken on 2.6.20-rc5

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).

--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' [email protected] | [email protected]
`- people.debian.org/~aurel32 | http://www.aurel32.net

2007-01-17 22:15:00

by Aurelien Jarno

[permalink] [raw]
Subject: Re: IPv6 router advertisement broken on 2.6.20-rc5

Sridhar Samudrala a ?crit :
> 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

--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' [email protected] | [email protected]
`- people.debian.org/~aurel32 | http://www.aurel32.net