[Lilux-help] link 2 networks with bridges using nic bonding

Hello, I am running into problems bridging 2 sites over a wireless link, with the need for failover... Basically the setup is like this: There are 2 sites to be linked with wireless. (bridged): Both sites are in the same 192.168.100.0/24 subnet (but they can be split up with routes, e.g. < .100 = site 1, and > .100 = site 2) We need failover so, we chose 2 barebone pcs with 3 nics, one nic of each to be connected to the local network on each site, and the two others to be connected to a dedicated (bonded) wireless link (Lancom L54), to effectively link the 2 sites. (That makes 4 Lancoms in total) The bond0 interfaces are up and running and failover works. bond0 has 10.1.1.1 on site 1 and 10.1.1.2 o site 2 bond0 is made of eth0&eth1 pinging from the barebone1 to barebone 2 works (10.1.1.1 -> 10.1.1.2 and 10.1.1.2 -> 10.1.1.1) eth2 has 192.168.0.100 on site 1 and 192.168.100.200 on site 2 (and these eth2 are connected to the switch at each site) Now my question is (as a non-network expert.. :) ): Which routes do I have to set up where to get this bridge working transparently? E.g.: On site 1, how can I make a workstation know that if it wants to reach 192.168.100.101 (on site 2), it must use the bridge, as "gateway". regards, yves p.s. Each site has a dedicated internet connection as well, and the default gateway is set to use the respective connection for each site.