RE: [Masq] IP Masq to virtual interfaces

[Gregory Leblanc]

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> -----Original Message-----
> From: Jiri Kucik [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, May 02, 2000 1:24 AM
> To: IP Masq List
> Subject: Re: [Masq] IP Masq to virtual interfaces
> 
> On Mon, 1 May 2000, Derek Murphy wrote:
> 
> > > What about masquerading internal users out different 
> _virtual_ interfaces
> > > (IP aliases) on the same external interface? 
> > 
> > A virtual or a physical i/f doesn't make any difference. 
> What counts is the
> > ROUTING, and of course, the ipchains rules to 
> allow/deny/reject from/to the 
> > different addresses/networks...
> 
> I have a Linux box with one external (eth0) and one internal 
> (eth1) interfaces, both with one virtual interface (eth0:0 on 
> the eth0 and
> eth1:0 on the eth1). Are these commands enough to masq two internal
> networks to two different external interfaces?
> 
>   ipchains -A forward -j MASQ -i eth0 -s eth1_network_address
>   ipchains -A forward -j MASQ -i eth0:0 -s eth1:0_network_address
> 
> I've tried it but the second masq doesn't work - why?

What does your routing table look like?  (netstat -rn or route -n)
        Greg

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