ES3528MV2 Supports Multicast IP IGMP Snooping - How to use IGMP filter function ? Follow
IGMP Filter function is normally used by Service Provider to control the channels that users subscribed to. To enable IP IGMP Filter, use the following steps:
Step 1. Use the command "IP IGMP Filter"
SW_1(config)#ip igmp filter
Step 2. Create IP IGMP profile 1. Only multicast group from range 224.1.1.1 to 224.1.1.3 is permitted
SW_1(config)#ip igmp profile 1
SW_1(config-igmp-profile)#permit
SW_1(config-igmp-profile)#range 224.1.1.1 224.1.1.3
Step 3. Check the configuration
SW_1#sh ip igmp filter
IGMP Filter Enabled
SW_1#sh ip igmp profile
IGMP Profile 1
SW_1#sh ip igmp profile 1
IGMP Profile 1
Permit
Range 224.1.1.1 224.1.1.3
Step 4. Apply IGMP filter profile 1 to port
SW_1(config)#int e 1/27
SW_1(config-if)#ip igmp filter 1
After IGMP filter profile 1 is applied to port 27, PC2 receives video stream from 224.1.1.1 to 3 only.
Please note that because IMGP filter blocks out the membership report packet of profile, PC2 receives video stream from 224.1.1.4 until "entry in multicast table time" is expiring.
SW_1#sh ip igmp snooping group
Bridge Multicast Forwarding Entry Count:7
Flag: R - Router port, M - Group member port
H - Host counts (number of hosts join the group on this port).
P - Port counts (number of ports join the group).
Up time: Group elapsed time (d:h:m:s).
Expire : Group remaining time (m:s).
VLAN Group Port Up time Expire Count
---- --------------- ----------- ----------- ------ --------
1 224.0.1.75 00:00:34:45 2(P)
Eth 1/25(M) 00:00:34:45 03:54 1(H)
Eth 1/28(R)
1 224.1.1.1 00:00:00:16 2(P)
Eth 1/27(M) 00:00:00:16 04:05 1(H)
Eth 1/28(R)
1 224.1.1.2 00:00:25:59 2(P)
Eth 1/27(M) 00:00:25:59 03:55 1(H)
Eth 1/28(R)
1 224.1.1.3 00:00:25:39 2(P)
Eth 1/27(M) 00:00:25:39 03:51 1(H)
Eth 1/28(R)
1 224.1.1.4 00:24 1(P)
Eth 1/28(R)
1 239.255.255.250 00:00:34:41 2(P)
Eth 1/ 1(M) 00:00:21:13 03:48 1(H)
Eth 1/28(R)
1 239.255.255.254 00:00:34:43 2(P)
Eth 1/25(M) 00:00:34:43 03:56 1(H)
Eth 1/28(R)
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