Try looking at Rockwell's cad files for the 1783-MS10T https://raise.rockwellautomation.com/RAConfig/resultsComponents.asp?CID=FA23414D7CD04D1EA7612ABF8939E883 or other models for other IE3000 blocks. 

I think what you are looking for is VPLS you can read about it here http://www.cisco.com/en/US/products/ps6648/products_ios_protocol_option_home.htmlIn the simplest terms it can be used to extend LAN segments between 2 or more sites.