This attribute specifies a local RIP interface which should be equal
to one of the IP addresses provisioned as a logicalIf component
under IpPort.
When this value is non-zero, the value of the protocol attribute must
be either set to rip or to all. And this more specific route will be
advertised together with the aggregated route only if it is learned
through RIP and this RIP interface.
The default value 0.0.0.0 indicates that the RIP interface is not
specified.