netdev - Re: Multiple GRE tunnels on the same host, only one routes incoming packets

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <1328964918.5661.26.camel@edumazet-laptop>
Date:	Sat, 11 Feb 2012 13:55:18 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Rick Koshi <netdev@...e-right-rudder.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Multiple GRE tunnels on the same host, only one routes incoming
 packets

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 :)


--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html