This read-write value names the filtering list that defines which networks are received versus suppressed in incoming RIP routing updates on an interface, with its list type set by the corresponding filtering-type field. An admin creates and references a named filter list here to control exactly which routes RIP will accept from that interface's neighbors. For example, naming an ACL or prefix list here that excludes a specific subnet prevents RIP from installing routes to that subnet even if a neighbor advertises it.