Specifies whether BGP, IS-IS, OSPF, or RIP routes
are available only for unicast forwarding, only for multicast reverse
path forwarding checks, or for both. The no version restores the default value, unicast for BGP or both for IS-IS, OSPF, and
RIP.
Options
unicast—Specifies that routes for the protocol
are available only for unicast forwarding
multicast—Specifies that routes for the protocol
are available only for multicast route path forwarding checks; this
option is not available for BGP
both—Specifies that routes for the protocol are
available for both unicast forwarding and multicast route path forwarding
checks
Mode
Address Family Configuration (RIP), Router Configuration