New install. I have two 1751 routers with a WIC-1T serial card in each. Router "A" is 192.168.0.21 and I need router "B" to be at 192.168.0.22 . "A" side is where the domain / internet access reside. I keep getting a conflict when I attempt to set "B" on the same subnet. I have done this in the past with the same model of router - only I used a DSU card instead of serial. I know I need to configure "IBRP" (integrated bridging & routing protocol) and maybe setup BVI interface? What came very simple several months ago is now lost. I hope someone with a little more exposure to these routers can joggle their brains better than I. Thanks in advance. LDB