Two netwok cards to access the internet.

Hi!

I have the following:

A RedHat 9.0 with 3 Network cards: One we use in local network (eth1) and the other (eth0 and eth2)  to access the internet.

I'd like to separate the traffic. In the eth0 use only with the e-mail server (pop, smtp, 1723, 1701 and protocol 47) and the eht0 with others traffis (http, https, msn....).

I tried 

iptables -t nat -A POSTROUTING -o eth2 -s 172.17.1.8 -j MASQUERADE   (--this ip addrs is pop and smtp server)
iptables -t nat -A POSTROUTING -o eth0 -s 172.17.0.0/16 -j MASQUERADE 

But when I did this I could not access the port 1723, 1701 and protocol 47 using the eth2.

I tried too use only iptables -t nat -A POSTROUTING -o eth2 -s 172.17.0.0/16 -j MASQUERADE

And I got the same prob.

If I use iptables -t nat -A POSTROUTING  -s 172.17.0.0/16 -j MASQUERADE 

I will get a success access. Only when I use iptables -t nat -A POSTROUTING  -s 172.17.0.0/16 -j MASQUERADE (without -o eth2 or -o eth0).


Who could help me?

Thanks


Sebastião Antônio Campos
Infojoi Computadores Ltda
Joinville -SC - R. Iririú, 3587
Cml. (47) 437-0796 - Cel. (47) 9927-5349
tiao@infojoi.com.br
http://www.lupusnet.com.br