...as defined by RFC 2710. Querier (router)-side MLDv1 is not yet supported. The core state machine is shared with IGMPv2. This is guarded behind a flag (ipv6.Options.MLDEnabled). Tests: ip_test.TestMGP* Bug #4861 PiperOrigin-RevId: 344344095
Preparing for upcoming CLs that add MLD functionality. Bug #4861 Test: header.TestMLD PiperOrigin-RevId: 343391556