IPv6 router advertisement broken on 2.6.20-rc5

IPv6 router advertisement broken on 2.6.20-rc5

[Aurelien Jarno]

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
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net

Re: IPv6 router advertisement broken on 2.6.20-rc5

[Bob Tracy]

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
rct@frus.com
-----------------------------------------------------------------------

Re: IPv6 router advertisement broken on 2.6.20-rc5

[bert hubert]

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

Re: IPv6 router advertisement broken on 2.6.20-rc5

[Aurelien Jarno]

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
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net

Re: IPv6 router advertisement broken on 2.6.20-rc5

[Sridhar Samudrala]

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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Re: IPv6 router advertisement broken on 2.6.20-rc5

[Daniel Drake]

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

Re: IPv6 router advertisement broken on 2.6.20-rc5

[Aurelien Jarno]

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

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net