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ospf6d deletes ipv4 routes from kernel routing table on restart

 

 

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dstickney at optilian

Jun 21, 2012, 7:19 AM

Post #1 of 4 (490 views)
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ospf6d deletes ipv4 routes from kernel routing table on restart

Hello all,

I just opened up bug 732
(https://bugzilla.quagga.net/show_bug.cgi?id=732) for this problem. My
googling and searching the bugzilla database didn't seem to turn up
other reports of this issue. Example configs and the procedure to
reproduce the problem are included in the bug report.

Fortunately it is easy to replicate. Unfortunately it is bad news in a
production network.

Have any of you seen this, or have any work-arounds to suggest ?

Thanks for your time.

Daniel


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Shane.McCormack at hostinguk

Jun 21, 2012, 3:49 PM

Post #2 of 4 (456 views)
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Re: ospf6d deletes ipv4 routes from kernel routing table on restart [In reply to]

From what I can see, this is a problem with the debian/ubuntu packaging of quagga rather than quagga or any of the quagga daemons.

On Debian/Ubuntu there is only a single /etc/init.d/quagga script which does everything, and the stop section has this line:

> ip route flush proto zebra

Which is called regardless of which daemons you are stopping. (So this would also remove BGP routes...)

On the other hand, the Redhat packages contain separate scripts for each daemon (/etc/init.d/bgpd, /etc/init.d/zebra ... /etc/init.d/ospf6d) and only the zebra script has the "ip route flush" line.

I don't recall the quagga repo containing a debian directory, so I believe this is packaged externally by someone from debian so you would need to contact them.

--
Shane Mc Cormack
Cisco Certified Network Associate
Linux Systems Engineer
Hosting UK
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> -----Original Message-----
> From: quagga-users-bounces [at] lists [mailto:quagga-users-
> bounces [at] lists] On Behalf Of Daniel STICKNEY
> Sent: 21 June 2012 15:20
> To: quagga-users [at] lists
> Subject: [quagga-users 12919] ospf6d deletes ipv4 routes from kernel routing
> table on restart
>
> Hello all,
>
> I just opened up bug 732
> (https://bugzilla.quagga.net/show_bug.cgi?id=732) for this problem. My
> googling and searching the bugzilla database didn't seem to turn up
> other reports of this issue. Example configs and the procedure to
> reproduce the problem are included in the bug report.
>
> Fortunately it is easy to replicate. Unfortunately it is bad news in a
> production network.
>
> Have any of you seen this, or have any work-arounds to suggest ?
>
> Thanks for your time.
>
> Daniel
>
>
> _______________________________________________
> Quagga-users mailing list
> Quagga-users [at] lists
> http://lists.quagga.net/mailman/listinfo/quagga-users


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tore.anderson at redpill-linpro

Jun 22, 2012, 12:16 AM

Post #3 of 4 (454 views)
Permalink
Re: ospf6d deletes ipv4 routes from kernel routing table on restart [In reply to]

* Daniel STICKNEY

> I just opened up bug 732
> (https://bugzilla.quagga.net/show_bug.cgi?id=732) for this problem. My
> googling and searching the bugzilla database didn't seem to turn up
> other reports of this issue. Example configs and the procedure to
> reproduce the problem are included in the bug report.
>
> Fortunately it is easy to replicate. Unfortunately it is bad news in a
> production network.
>
> Have any of you seen this, or have any work-arounds to suggest ?

It's not a Quagga bug, it's a Debian/Ubuntu packaging bug:

https://bugs.launchpad.net/bugs/405195

--
Tore Anderson
Redpill Linpro AS - http://www.redpill-linpro.com/


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dstickney at optilian

Jun 22, 2012, 7:21 AM

Post #4 of 4 (455 views)
Permalink
Re: ospf6d deletes ipv4 routes from kernel routing table on restart [In reply to]

Tore, thanks for the link. Bug opened in 2009 ? Yikes, I'm surprised it
is still not fixed. Thanks also for your patch, I'll be using that on
our systems.

-Daniel





<http://www.optilian.com>

Le 22/06/2012 09:16, Tore Anderson a écrit :
> * Daniel STICKNEY
>
>> I just opened up bug 732
>> (https://bugzilla.quagga.net/show_bug.cgi?id=732) for this problem. My
>> googling and searching the bugzilla database didn't seem to turn up
>> other reports of this issue. Example configs and the procedure to
>> reproduce the problem are included in the bug report.
>>
>> Fortunately it is easy to replicate. Unfortunately it is bad news in a
>> production network.
>>
>> Have any of you seen this, or have any work-arounds to suggest ?
> It's not a Quagga bug, it's a Debian/Ubuntu packaging bug:
>
> https://bugs.launchpad.net/bugs/405195
>
> --
> Tore Anderson
> Redpill Linpro AS - http://www.redpill-linpro.com/
>
>
> _______________________________________________
> Quagga-users mailing list
> Quagga-users [at] lists
> http://lists.quagga.net/mailman/listinfo/quagga-users

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