[CentOS] Multicast packages dropped

Tue Feb 25 14:15:04 UTC 2014
Uwe.Poliak at amann.com <Uwe.Poliak at amann.com>

Hi Brian,

rolling back to -358 and everything works fine again... :(

Mit freundlichen Grüßen / Kind regards

Uwe Poliak

-----Original Message-----
From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Brian Miller
Sent: Tuesday, February 25, 2014 12:46 PM
To: centos at centos.org
Subject: Re: [CentOS] Multicast packages dropped

On Tue, 2014-02-25 at 11:12 +0000, Uwe.Poliak at amann.com wrote:
> Hi,
> I have recently updated one of my systems from CentOs 6.4 to CentOS 6.5.
> This systems is used as a RIPv2 routing server with quagga which is the termination point of some GRE tunnels.
> While running CentOS 6.4 I see the multicast packages arriving at the eth0 and the GRE tunnel interface.
> While running under CentOs 6.5 I can see the multicast packages arriving at the eth0 but not on the GRE tunnel interface.
> I am receiving and sending routes at the eth0 interface, but I am only able to send updates through the GRE tunnel not receive them.
> All interfaces are multicast enabled:

Between the -358 and -431 kernel releases from upstream there has been a lot of multicast weirdness going on.  If you're currently running -431 try rolling back to the last -358 (or vice-versa) and rerun your tests to see if the behavior changes.

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