[squid-users] Mandrake + 3NICs

[Varun]

Hello,
       My server is on Mandrake 10 CE and has 3NICs.
eth0 is gateway
eth1 for LAN
eth2 for LTSP clients
I want internet access only betweeen eth0 and eth1.
What are ways available to do it? Which is the best ?
Thanks

Varun