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From: Alexandru Dragoi <alex@zoomnet.ro>
To: "antonio.dibacco" <antonio.dibacco@aruba.it>
Cc: netfilter@lists.netfilter.org
Subject: Re: Cannot route through an if without ip
Date: Sun, 14 May 2006 13:04:51 +0300	[thread overview]
Message-ID: <446700C3.8060407@zoomnet.ro> (raw)
In-Reply-To: <20060514080905.18403.qmail@mx1.aruba.it>

antonio.dibacco wrote:

>
> I have an ethernet (eth1) without any assigned ip, nevertheless I
> would like to route through this IF but issueing the following command
> gives an error:
> route add -net 192.168.1.0 dev eth1
> If the same IF has an address the command will be correctly executed.
> Why?
>
You can't do that. If you know the mac of the other router, do domething
like:

#ip ro add 172.20.20.20/32 dev eth1 scope link
#arp -s 172.20.20.20 <mac>
#ip ro add 192.168.1.0/24 via 172.20.20.20.20

So .. this just show why you can't just route throught an ethernet
device, unless you "want" to do some multicast flood.


  reply	other threads:[~2006-05-14 10:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-14  8:09 Cannot route through an if without ip antonio.dibacco
2006-05-14 10:04 ` Alexandru Dragoi [this message]
2006-05-14 12:00 ` Pascal Hambourg

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