
156 Chapter 7: Metro Mobility: Cisco Mobile Networks
Routing to and from the Mobile Router
At a risk of stating the obvious, the mobile router serves as the first-hop router for nodes that reside
on mobile networks associated with the mobile router. For traffic that is originating on its mobile
networks, the mobile router can either reverse-tunnel traffic to the Home Agent or forward traffic
through the default gateway on the Foreign Network. To this end, the mobile router establishes a
default route to its FA and sends all outgoing traffic through the FA. However, for traffic that must
be reverse-tunneled, the mobile router first encapsulates the packets ...