[Wylug-help] NAT on one physical layer?

[Jim Jackson]

Not got time for a long answer. But you don't need the second interface
card. You can run sub-interfaces eth0:1 eth0:2 etc on the same physical
interface, and, I believe (not actually done this, yet but I may like
you) use the sub-interface in the iptables masq stuff.


On Mon, 12 May 2003, Ian Rutson wrote:

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>
> Not really too sure how to explain this, I know all the inofrmation's
> out there, but I'd like some pointers.
>
> I've just switched to Zen for my ADSl connection, because I wanted a
> fixed IP range, so I have 5 fixed IPs to play with.
>
> So far I'm using all five for main Linux server box, Main XP box, Kid's
> 98 box, Sparc and Mac.
>
> I also have a X-box and a laptop, and other machines that come and go,
> as well as machines that I build for others that need occasional access.
>
> What I plan to do is put another network card in the Linux server box
> and run IP masquerading on that to provide a local address range for any
> other computers that are here.
>
> My question is, can I run the two ranges on the same physical layer, or
> will the machines on the local address range have to be on separate
> wiring?
>
> My setup as of now is:
>
> ADSL router -> 5 port switch -> xbox
>                              -> laptop
>                              -> cable running up the stairs to.....
>
> 8 port switch -> Main PC
>               -> Linux box
>               -> Sparc
>               -> Mac
>               -> xbox
>               -> whatever else happens to be here
>
> So, can I just run another cable fromt he nw net card to the switch on
> say 192.168.1.1 or do I need a separate physical layer?
>