[LARTC] Confuse, putting packets in wrong mangle table.

[Rio Martin.]

Folks,
I am a little bit confuse in how to put these packets into correct mangle 
table for traffic shaping.

This is what i ve planned to do:

- - - - :eth0 [ LINUX-BOX ] eth1: - - - -

Let say:
eth0: 220.100.1.1
eth1: 192.168.1.1
eth1:1 192.168.1.2

192.168.1.0/24 get natted into 220.100.1.1 before reaching the internet.
I put every packets coming from internet (eth0) this way:
# iptables -t mangle -I PREROUTING -i eth0 .. * * * *

But what if i would like to do the same way with ip 192.168.1.1 and 
192.168.1.2 ? How to put the packets in correct mangle table?

Thanks before ..

Regards,
Rio Martin.