You want to distribute your multicast routing tables with MOSPF.
Unfortunately, Cisco does not support MOSPF. As mentioned in the Introduction to this chapter, MOSPF is a set of multicast extensions to OSPF that uses LSA Type 6. By default, when a Cisco router receives a Type 6 LSA packet it will generate a %OSPF- 4-BADLSATYPE error message. To avoid this error message, you can configure your routers to ignore Type 6 LSA packets:
Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#router ospf 65530 Router(config-router)#ospf ignore lsa mospf Router(config-router)#end Router#
MOSPF has not enjoyed a particularly wide acceptance for several reasons, mostly related to the fact that it uses a dense-mode multicast-forwarding scheme, and because it is protocol dependant. It turns out to be most useful in networks that meet several key requirements:
Few router vendors have implemented MOSPF. Increasingly, the multicast routing protocol of choice appears to be PIM-SM.
However, it is important to note that the normal default behavior for PIM is to use the standard IP unicast routing table. If you happen to be using OSPF for your standard IP routing tables, PIM will use the same OSPF routing tables to construct its Reverse Path Forwarding (RPF) trees back to the multicast source or Rendezvous Point (RP) by default. So you can use OSPF with PIM, without needing any additional configuration.
The only thing that you miss by not being able to use MOSPF is the ability to dynamically distribute a multicast routing table that reflects a different topology than the unicast routing table.
Router Configuration and File Management
User Access and Privilege Levels
Handling Queuing and Congestion
Tunnels and VPNs
NTP and Time
Router Interfaces and Media
Simple Network Management Protocol
First Hop Redundancy Protocols
Appendix 1. External Software Packages
Appendix 2. IP Precedence, TOS, and DSCP Classifications