Hi. Sorry for the English. I did follow the guide from wiki and i did create sometime ago a router in my ubuntu server. It has 3 ethernet cards. eth0 is the wan and eth1 has the LAN (192.168.1.0/24). I would like to add another network card and have:
-eth0: WAN -eth1: LAN1 192.168.1.0/24 -eth2: LAN2 192.168.2.0/24 -eth3: LAN3 192.168.3.0/24
my question is about the firewall. I am running the rules from a script that on boot it is loaded (rules.sh) I need LAN1 and LAN2 to see each other. LAN3 not to be able to see anyone and see only the Internet. how can i alter the script to make it feasible please?