The value of the object tmnxNatPcpSrvFwdInsideRouter specifies
the identifier of the PCP forwarding inside virtual router instance
associated with the PCP server.
The value of tmnxNatPcpSrvFwdInsideRouter refers to a row in the
tmnxNatVrtrTable.
The value zero specifies that there is no PCP forwarding
inside virtual router instance associated with this PCP server.