A router, by default, is a member of the 224.0.0.2 group. Here are a few of the reserved multicast addresses:
224.0.0.0 Base Address (Reserved) [RFC1112,JBP] 224.0.0.1 All Systems on this Subnet [RFC1112,JBP] 224.0.0.2 All Routers on this Subnet [JBP] 224.0.0.3 Unassigned [JBP] 224.0.0.4 DVMRP Routers [RFC1075,JBP] 224.0.0.5 OSPFIGP OSPFIGP All Routers [RFC2328,JXM1] 224.0.0.6 OSPFIGP OSPFIGP Designated Routers [RFC2328,JXM1] 224.0.0.7 ST Routers [RFC1190,KS14] 224.0.0.8 ST Hosts [RFC1190,KS14] 224.0.0.9 RIP2 Routers [RFC1723,GSM11] 224.0.0.10 IGRP Routers [Farinacci] John >>> "Mohannad Khuffash" 12/20/02 11:27:48 AM >>> Hello ... "Illegal multicast group address" is the output when using ip igmp join-group 224.0.0.2 command, the address should not be one of the reserved multicast addresses! ""Xueyan Liu"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, there > > I think there is a way to force a router interface to join a multicast > group. try this command under the interface see if that helps. > > from cco > ip igmp join-group group-address > To have the router join a multicast group, use the ip igmp join-group > interface configuration command. To cancel membership in a multicast group, > use the no form of this command. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59641&t=59609 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
