In that case you need to check the switch configurationfirst, if you try to do an advance LAN routing. You alsoneed to check LAN bridging section. The two segments will be in the same subnetand look like two Ethernet switches connected by a cable to all computers onthe subnet. Since the computers are on the same subnet, broadcasts will reachall machines, allowing DHCP clients in one segment to get their addresses froma DHCP server in a different segment. You could use a Wireless Bridge totransparently connect computer(s) in one room to computer(s) in a differentroom when you could not, or did not want to run an Ethernet cable between therooms. Contrast this with Client Mode Wireless, where the local wireless devicerunning DD-WRT connects to the remote router as a client, creating two separatesubnets. Since the computers within the different subnets cannot see each otherdirectly, this requires the enabling of NAT between the wireless and the wiredports, and setting up port forwarding for the computers behind the localwireless device. Segments connected via Client Mode Wireless cannot share aDHCP server.