Not typical NAT

ntrl · n00b Joined: 26 Sep 2004 Posts: 34 Location: SPb, Russia

Hello all!

Please, help me write rules for iptables.

On my LinuxBOX-router 3 interfaces (1 WAN - eth1; 2 LAN - eth0 and eth2).
For eth2 demands full NAT -- here VoIP,

For eth0 demands turn off NAT (except 25 and 110 ports - for mail), and redirect
80 port to 3128 (for transparent proxy) on local squid. -- here bad users

All night read "iptables tutorial", but n'a pas compris

Thanx.

PS. sorry for bad english
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WBR

erik258 · Posted: Sun Dec 02, 2007 1:45 am Post subject:

Friend,
You should expain the subnets on each interface and where the internet connection is.

You should explain the ports that are to be open on each interface.

We can the start examining where Network Address Translation needs to occur. To Firewall a subnet and to NAT that subnet are two different things.
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