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From: bert hubert <ahu@ds9a.nl>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] route with different metric
Date: Wed, 26 Sep 2001 20:53:35 +0000	[thread overview]
Message-ID: <marc-lartc-100153761406052@msgid-missing> (raw)
In-Reply-To: <marc-lartc-100150978014261@msgid-missing>

On Wed, Sep 26, 2001 at 02:05:42PM -0400, Adrian Chung wrote:

> If this machine is also running daemons, does it send replies back out
> the same interface they came in on?  That'll break a lot of things if
> you receive packets via ISP1, and send replies back via ISP2.

That sometimes happens - policy routing can help with that problem:

$ ip rule ls
0:	from all lookup local 
32765:	from 213.156.3.162 lookup pine 
32766:	from all lookup main 
32767:	from all lookup default 

$ ip route ls
195.190.241.81 dev ppp0  proto kernel  scope link  src 194.109.252.152 
213.156.3.160/28 dev eth1  proto kernel  scope link  src 213.156.3.162 
10.0.0.0/24 dev eth0  proto kernel  scope link  src 10.0.0.150 
192.168.0.0/24 dev eth2  proto kernel  scope link  src 192.168.0.1 
default via 195.190.241.81 dev ppp0 

$ ip route ls table pine
default via 213.156.3.161 dev eth1 

This forces packets to go the right way.

Regards,

bert

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  parent reply	other threads:[~2001-09-26 20:53 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-09-26 13:10 [LARTC] route with different metric Christian Lox
2001-09-26 13:13 ` bert hubert
2001-09-26 13:39 ` Christoph Simon
2001-09-26 13:45 ` Juri Haberland
2001-09-26 13:53 ` Juri Haberland
2001-09-26 14:10 ` bert hubert
2001-09-26 14:37 ` Juri Haberland
2001-09-26 18:05 ` Adrian Chung
2001-09-26 20:53 ` bert hubert [this message]
2001-09-26 21:16 ` Adrian Chung
2001-09-27  7:44 ` Juri Haberland
2001-09-27 22:40 ` Adrian Chung

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