i need help about ip masquerading...

SERVER: knoppix box (hdd installation)
eth0 (usb) motorola cable modem
eth1 (pci) intel ethernet

HUB: 8 port n-way switch hub

CLIENT(S): win xp box with pci ethernet


ok, that's the what i wanna build...

....SERVER: knoppix box (hd installation)
........................... l
............................l
...........................V
..............HUB: uplink / port 1 / port 2 / port 3...
.......................................l.......... ..l
.......................................l.......... ..l
......................................V........... V
....CLIENTS:.............xp box....xp box

ok, what now?

thanx 4 replies...