Lab IGMP
R3#debug ip igmp
access 101 per igmp any any
R2(config-if)#
*Mar 1 00:06:38.255: IGMP(0): Send v2 init Query on Serial0/0
*Mar 1 00:06:38.255: IGMP(0): WAVL Insert group: 224.0.1.40 interface: Serial0/0Successful
*Mar 1 00:06:38.255: IGMP(0): Send v2 Report for 224.0.1.40 on Serial0/0
*Mar 1 00:06:38.259: IGMP(0): Received v2 Report on Serial0/0 from 10.1.12.2 for 224.0.1.40
*Mar 1 00:06:38.259: IGMP(0): Received Group record for group 224.0.1.40, mode 2 from 10.1.12.2 for 0 sources
*Mar 1 00:06:38.259: IGMP(0): Switching to EXCLUDE mode for 224.0.1.40 on Serial0/0
*Mar 1 00:06:38.259: IGMP(0): Updating EXCLUDE group timer for 224.0.1.40
*Mar 1 00:06:38.259: IGMP(0): MRT Add/Update Serial0/0 for (*,224.0.1.40) by 0
R2(config-if)#
R2(config-if)#
R2(config-if)#i
*Mar 1 00:06:38.263: IGMP(0): MRT Add/Update Serial0/0 for (*,224.0.1.40) by 4
R2(config-if)#int f1/
*Mar 1 00:06:38.407: %PIM-5-NBRCHG: neighbor 10.1.12.1 UP on interface Serial0/0 (vrf default)
R2(config-if)#int f1/0
R2(config-if)#ip pim den
R2(config-if)#ip pim dense-mode
R2(config-if)#
R2(config-if)#
*Mar 1 00:06:44.131: IGMP(0): Send v2 init Query on FastEthernet1/0
R2(config-if)#
*Mar 1 00:06:46.123: PIM(0): Check DR after interface: FastEthernet1/0 came up!
*Mar 1 00:06:46.123: PIM(0): Changing DR for FastEthernet1/0, from 0.0.0.0 to 10.1.1.2 (this system)
R2(config-if)#
*Mar 1 00:06:46.123: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 10.1.1.2 on interface FastEthernet1/0 (vrf default)
R2(config-if)#
*Mar 1 00:07:01.267: IGMP(0): Send v2 general Query on FastEthernet1/0
R2(config-if)#
R2#sh ip igmp interface s0/0
Serial0/0 is up, line protocol is up
Internet address is 10.1.12.2/24
IGMP is enabled on interface
Current IGMP host version is 2
Current IGMP router version is 2
IGMP query interval is 60 seconds
IGMP querier timeout is 120 seconds
IGMP max query response time is 10 seconds
Last member query count is 2
Last member query response interval is 1000 ms
Inbound IGMP access group is not set
IGMP activity: 1 joins, 0 leaves
Multicast routing is enabled on interface
Multicast TTL threshold is 0
IGMP querying router is 0.0.0.0 (this system)
Multicast groups joined by this system (number of users):
224.0.1.40(1)
R2#debug ip packet 101
IP packet debugging is on for access list 101
R2#
*Mar 1 00:17:01.267: IGMP(0): Send v2 general Query on FastEthernet1/0
*Mar 1 00:17:01.267: IP: s=10.1.1.2 (local), d=224.0.0.1 (FastEthernet1/0), len 28, sending broad/multicast
R2(config)#int f1/0
R2(config-if)#ip ig
R2(config-if)#ip igmp ver
R2(config-if)#ip igmp version 1
R2(config-if)#end
R2#
*Mar 1 00:18:09.695: IGMP(0): Switching IGMP version from 2 to 1 on FastEthernet1/0
*Mar 1 00:18:09.695: IGMP(0): Send v1 init Query on FastEthernet1/0
*Mar 1 00:18:09.695: IP: s=10.1.1.2 (local), d=224.0.0.1 (FastEthernet1/0), len 28, sending broad/multicast
R2#
*Mar 1 00:18:10.395: %SYS-5-CONFIG_I: Configured from console by console
