The value of tmnxNatPlLsnRedMonPrefix specifies
the IP address of the prefix to be monitored.
While the monitor prefix is configured, the system monitors the
presence of this prefix in the routing table of the virtual router
instance associated with this pool; the presence of this prefix
is an indication that the NAT redundancy peer is active;
the monitor prefix of this system is the export prefix of the peer.
The monitor prefix must be different from the export prefix.