From: Andi Kleen <ak@suse.de>
To: "John Que" <qwejohn@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: determine outgoing interface (eth0,eth1) for a packet according to the dest IP
Date: Tue, 25 Apr 2006 09:43:49 +0200 [thread overview]
Message-ID: <200604250943.49422.ak@suse.de> (raw)
In-Reply-To: <ada605fb0604250031r2e4a74e7id0b5079fabde9517@mail.gmail.com>
On Tuesday 25 April 2006 09:31, John Que wrote:
> Hello,
> What is the right way to determine on which interface card
> (eth0 or eth1) will a packet be sent (according to the dest IP)?
You can send a rtnetlink RTM_GETROUTE message to ask the kernel.
Result is the interface index in RTA_OIF, which can be converted
into a name.
-Andi
next prev parent reply other threads:[~2006-04-25 7:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-25 7:31 determine outgoing interface (eth0,eth1) for a packet according to the dest IP John Que
2006-04-25 7:43 ` Andi Kleen [this message]
2006-04-25 7:58 ` David S. Miller
2006-04-25 14:44 ` John Que
2006-04-25 14:48 ` Andi Kleen
2006-04-26 10:24 ` John Que
2006-04-26 13:58 ` Herbert Xu
2006-04-30 9:17 ` Lennert Buytenhek
2006-04-30 12:55 ` Herbert Xu
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