Mark Andrews wrote: > Total hogwash. Add a bit of source address based routing within > the enterprise so that you hit the right exit routers for the source > address being used. While source address based routing is not easy, it is a lot less difficult than let end systems select the proper source addresses. > Tag route entries with valid source prefixes. With IGP which can carry source prefixes for corresponding route entries, an exit router of a route entry has a source prefix of the route entry. Thus, no source address based routing necessary. Masataka Ohta