Say, What are teh settings required. N/W is as follows:
Local lan on eth0: 192.168.10.1/24
eth0:1: 192.168.1.1/24 Virtual port for ppp0 connection.
ppp0 uses eth0:1 and connects to the internet through adsl modem connected to same switch as eth0
PC's on local LAN need internet connection and I need port forwarding to them.