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Re: Two NICs, Two gateways



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On 26 May 2006 at 1:43, redhatdude bellsouth net wrote:

From:           	redhatdude bellsouth net
Date sent:      	Fri, 26 May 2006 01:43:06 -0400
To:             	For users of Fedora Core releases <fedora-list redhat com>
Subject:        	Re: Two NICs, Two gateways
Send reply to:  	For users of Fedora Core releases <fedora-list redhat com>
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> On May 25, 2006, at 9:32 PM, Terry Polzin wrote:
> 
> > On Thursday May 25 2006 21:24, redhatdude bellsouth net wrote:
> >> Hi,
> >> I have a FC5 machine running apache at work which I set up as an nfs
> >> server to share files in our office. Unfortunately, our IT guys
> >> blocked everything except apache ports and therefore I can't run nfs
> >> since the traffic doesn't reach that linux box. We have two gateways
> >> at work,  one 10.0.0.200 for the IT department and apache, and the
> >> other 10.0.0.201 for the rest of the users. I installed a second card
> >> into this machine to serve NFS shares with a different IP and the
> >> gateway for the users. Unfortunately, even though I configured both
> >> cards with one different gateway each, the last NIC to load at boot
> >> sets the gateway for both cards and it either allows http traffic or
> >> nfs traffic, depending on the gateway that gets set.
> >> Can someone show me how I can get each card to access different
> >> gateways?
> >> Thanks,
> >> EJ
> > There can be ONLY one default gateway, sounds like you need to set  
> > up a static
> > route for the one interface.
> 
> 
> How do I do that?
> EJ

Not sure if it will do what you want, but you might want to look at:
Linux Advanced Routing & Traffic Control HOWTO
http://lartc.org/

I have a system with two nics connected to two different network paths.
Using the info and ip route, it can setup routing to use both paths and have 
multiple default routes. Not sure how it would your setup. 

Additionally, I have setup static routes route for various networks to use one 
or the other interface.
route add -net xxx.xxx.7.0/24 gw nicip

I later have a 
ip route add equalized default .....



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