networking - Allow two subnets to talk to each other over a wireless bridge

I have two subnets connected over a wireless bridge and I'm trying to figure out how to get them to talk to each other.

Subnet 1

• Router: Netgear wireless


• Router IP: 192.168.1.1


• DHCP range: 192.168.1.2 - 192.168.1.254


• Subnet mask: 255.255.255.0


• Internet: Connected directly to cable modem

Subnet 2

• Router: Linksys running dd-wrt


• Router IP: 192.168.2.1


• DHCP range: 192.168.2.2 - 192.168.2.254


• Internet: Connected to the Netgear router via a wireless bridge


• WAN IP: 192.168.1.10

When I'm on Subnet 1, I can't connect to anything on Subnet 2 (even the wireless bridge IP of 192.168.1.10).

When I'm on Subnet 2, I can connect to everything on 192.168.2.* as well as the Subnet 1 router on 192.168.1.1. But I can't connect to any other machines on Subnet 1.

The physical limitations of my house make the wireless bridge a requirement. I don't think making a wired connection between the two subnets is an option.

How can I set things up so machines on both subnets can communicate with each other and still get to the Internet?

Answer

Your setup is not a wireless bridge, just a way of using the wireless medium to carry a network connection to another router, the second "router" should be setup as a bridge to pass-thru all network traffic, making this all one subnet with one router handling all DHCP and routing functions for the entire LAN. This is called a Client-Bridge configuration and is a common DD-WRT application.

http://www.dd-wrt.com/wiki/index.php/Client_Bridged