From: Eric Dumazet <eric.dumazet@gmail.com>
To: Rick Koshi <netdev@more-right-rudder.com>
Cc: netdev@vger.kernel.org
Subject: Re: Multiple GRE tunnels on the same host, only one routes incoming packets
Date: Sat, 11 Feb 2012 13:55:18 +0100 [thread overview]
Message-ID: <1328964918.5661.26.camel@edumazet-laptop> (raw)
In-Reply-To: <201202111210.q1BCADqU026660@hope.more-right-rudder.com>
Le samedi 11 février 2012 à 07:10 -0500, Rick Koshi a écrit :
> Eric Dumazet writes:
> >
> > check :
> >
> > grep . `find /proc/sys -name rp_filter`
>
> Thank you, thank you, thank you! This is exactly right.
> CentOS by default sets reverse-path filtering (which I'd
> never even heard of before your message) partially on
> (value 1 in /proc/sys/net/ipv4/conf/default/rp_filter).
>
> In my case, I need it completely off for my 2 tunnel
> interfaces. A quick change to my setup script, and
> everything works now.
>
> Thank you so very much. You have saved me hours
> of frustration and given me a good night's sleep. :-)
>
You're very welcome :)
prev parent reply other threads:[~2012-02-11 12:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-11 10:40 Multiple GRE tunnels on the same host, only one routes incoming packets Rick Koshi
2012-02-11 10:59 ` "Oleg A. Arkhangelsky"
2012-02-11 11:18 ` Rick Koshi
2012-02-11 11:29 ` Eric Dumazet
2012-02-11 12:10 ` Rick Koshi
2012-02-11 12:55 ` Eric Dumazet [this message]
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