iptables - adding a 2nd subnet for WiFi?

[dhumble]

Hi,

My LAN is 192.168.160.0
I have a Draytek router 192.168.160.1 and I DMZ to my
Ubuntu 9.10 Server (2.6.31-14-generic-pae) which I run a few services on.

I have just added a Wireless Card 192.168.3.1, installed DHCPd and HOSTAPd, creating a 2nd subnet 192.168.3.0. The card is working fine as an AP and I now need assistance with adding filtering to IPTABLES.

I want wireless peers to be able to get a DHCP address and to access my LAN and the internet.

Help with setting up the filtering, and I believe MASQuerading would be appreciated.

David

[Lazydog]

Look at the rules you have setup for 160 and then copy what you want over to 3 network.

[dhumble]

Many thanks Robert.

I thought I would need to MASquerade the 163 subnet to get internet access via the DSL Router (192.168.160.2) but I'll give your suggestion a go.

David

[Lazydog]

MASQ should only be used on the outward facing interface and only MASQ traffic that is leaving.