Zdraveite , 
Imam linux mashina (slack 9.0) sys eth0 i eth1
eth0 - 192.168.0.1/24
eth1:0 - 80.80.80.10/24
eth1:1 - 80.80.80.11/24
 mrejovata karta eth0 e vyrzana kym switch kym koito ima shte
 dve mashini , PC1 - 192.168.0.2/24 i PC2 - 192.168.0.3/24 ,
kato default gw-a i na dvete e 192.168.0.1
ot eth1 idva internet-a ot provaidera , 
Kak da napravq taka che PC1 i PC2 da imat internet kato PC1
"izliza" s IP 80.80.80.10 , a PC2 s 80.80.80.11 ?
moje li da stane tova samo s route ili iptables ?
(ideqta za bridge ne me ustroiva poradi redica prichini)

Predvaritelno vi blagodarq za syvetite

 znachi moje da stane s iptables, obache shte ti e trudno da
slojish ip 192.168.0.2/24 :)

za iptables komandite ti sa: 
 iptables -t nat -A POSTROUTING -s 192.168.0.2 -j SNAT --to
80.80.80.10 # za parviq komp

 iptables -t nat -A POSTROUTING -s 192.168.0.3 -j SNAT --to
80.80.80.11 # za vtoriq komp

 sashto taka ako policy-to ti na FORWARD chain-a e DROP shte
trqbva da slojish i:
 iptables -I FORWARD -m state --state RELATED,ESTABLISHED -j
ACCEPT
iptables -I FORWARD 2 -s 192.168.0.2 -j ACCEPT
iptables -I FORWARD 2 -s 192.168.0.3 -j ACCEPT