Modifying the MLD Version
By default, the router supports MLD version 1 (MLDv1). To enable the router to use MLD version 2 (MLDv2) for source-specific multicast (SSM) only, include the version 2 statement.
version 2;
You can include this statement at the following hierarchy levels:
If a source address is specified in a multicast group that is statically configured, the version must be set to MLDv2.
