NAT-related routes are active only on the node with the active NAT group. On the outside, these are the pool routes that attract traffic in the downstream direction. On the inside, the destination-prefix (which can be configured per NAT policy) represents a route that diverts traffic to NAT in the upstream direction. In case of a filter-based diversion to NAT, a steering route is advertised only from the active node. The following are the steering-route contexts.
config>router>nat>inside>redundancy>steering-route ip-prefix/length
config>service>vprn>nat>inside>redundancy>steering-route ip-prefix/length
The route advertisement concept is shown in Figure: Route advertisement.
Figure: Route advertisement
