HP VPN Firewall Appliances Network Management Configuration Guide

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Figure 331 IGMP multicast group information
Table 61 Field description
Field Descri
p
tion
Interface Name of the interface that has joined the multicast group.
Group address Multicast group address.
Group uptime Length of time since the multicast group was reported.
Group remaining lifetime
Remaining lifetime of the multicast group. Null means that the multicast
group times out when all multicast sources of this group time out.
Source address Multicast source address.
Source uptime Length of time since the multicast source was reported.
Source remaining lifetime
Remaining lifetime of the multicast source. Null means that the multicast
source times out when the corresponding multicast group times out.
IGMP configuration example
In this example, Device A is the firewall.
Network requirements
As shown in Figure 332, the receivers receive VOD information through multicast. The receivers of
different organizations form stub networks N1 and N2. Host A and Host C are receivers in N1 and N2,
respectively.
IGMPv2 runs between Device A and N1. IGMPv2 runs between Device B, Device C, and N2. Device B
serves as the IGMP querier in N2 because it has a lower IP address.