H3C Technologies H3C SecPath F1000-E - Manual (Page 626)

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# Enable IP multicast routing on SecPath, IGMP proxying on GigabitEthernet 0/1, and IGMP on
GigabitEthernet 0/2.
<SecPath> system-view
[SecPath] multicast routing-enable
[SecPath] interface GigabitEthernet 0/1
[SecPath-GigabitEthernet0/1] igmp proxying enable
[SecPath-GigabitEthernet0/1] quit
[SecPath] interface GigabitEthernet 0/2
[SecPath-GigabitEthernet0/2] igmp enable
[SecPath-GigabitEthernet0/2] quit
3. Verify the configuration:
Use the display igmp interface command to display IGMP configuration and operation
information on the interface of the firewalls. For example,
# Display the IGMP information on GigabitEthernet 0/1 of SecPath.
[SecPath] display igmp interface GigabitEthernet 0/1 verbose
GigabitEthernet0/1(192.168.1.2):
IGMP proxy is enabled
Current IGMP version is 2
Multicast routing on this interface: enabled
Require-router-alert: disabled
Version1-querier-present-timer-expiry: 00:00:20
Use the display igmp group command to display IGMP group information. For example,
# Display the IGMP group information on Router.
[Router] display igmp group
Total 1 IGMP Group(s).
Ethernet1/1(192.168.1.1):
Total 1 IGMP Groups reported
Group Address Last Reporter Uptime Expires
224.1.1.1 192.168.1.2 00:02:04 00:01:15
The output shows that IGMP reports from the hosts are forwarded to Router through the proxy
interface, GigabitEthernet 0/1 of SecPath.
Troubleshooting IGMP
No membership information on the receiver-side router
Symptom
When a host sends a report for joining multicast group G, no membership information of the multicast
group G exists on the router closest to that host.
Analysis
• The correctness of networking and interface connections and whether the protocol layer of the
interface is up directly affect the generation of group membership information.
• Multicast routing must be enabled on the router, and IGMP must be enabled on the interface
connecting to the host.