I'm wondering if it's possible to have two 871 ISR's join to be 1 network? I have one router right now and I want to put a second in our warehouse, located about 1500 feet away from the existing router. Can the 2 routers join to create a single network so both buildings can share a single internet connection and Windows workgroup?
With version 12.4(11)XJ the ISR routers can now be configured as root/non-root bridges. You could configure the wireless interfaces to work in a bridged mode (using BVI interfaces) and setup the station roles as root/non-root and you should be able to accomplish what you described.