Need help with IPV6 and multicast...

[SituFangs]

Long and short is that I have a switch only network (not because I wanted it, but because I was given it as a cruel joke) there are three networks per switch, and three layer three interfaces. Vlan 400,450 and g1/0/24. Unicast works through. Now I am trying to get unicast to function. There are no ACLs (removed for troubleshooting). My multicast host is on Vlan 400. I am not seeing any traffic from the host past the Vlan. (At the routed port)

Any ideas?

[Peter Paluch]

Hello,

As a minimum, for the multicast to be routed between IP networks on your switch, you need to enable at least the following:

• IPv6 multicast on the global level (ipv6 multicast-routing)
• Configure the IPv6 address of the Rendezvous Point (ipv6 pim rp-address ...)
• Enable PIM on all routed interfaces that connect to either multicast sources, receivers, or to other multicast-enabled switches (ipv6 pim)

Please make sure these elements are configured. Ideally, it would help if you shared the relevant parts of your configuration; also knowing your exact switch type and IOS/IOS-XE version would be useful. Finally, are the multicast source and receivers connected to the same switch, or are the located at different switches?

Best regards,
Peter