HP VPN Firewall Appliances Network Management Configuration Guide

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On a multi-access network with more than one IGMP proxy device, you cannot enable multicast
forwarding on any other non-querier downstream interface after one of the downstream interfaces of
these IGMP proxy devices has been elected as the querier. Otherwise, duplicate multicast flows might be
received on the multi-access network.
To enable multicast forwarding on a downstream interface:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable multicast forwarding on a
non-querier downstream interface.
igmp proxying forwarding Disabled by default.
Displaying and maintaining IGMP
Task Command Remarks
Display IGMP group information.
display igmp group [ group-address |
interface interface-type interface-number ]
[ static | verbose ] [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display information about the hosts
tracked by IGMP on an interface.
display igmp host interface interface-type
interface-number group group-address
[ source source-address ] [ | { begin | exclude
| include } regular-expression ]
Available in any view.
Display IGMP configuration and
operation information.
display igmp interface [ interface-type
interface-number ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Display the information of IGMP
proxying groups.
display igmp proxying group
[ group-address ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Display information in the IGMP
routing table.
display igmp routing-table [ source-address
[ mask { mask | mask-length } ] |
group-address [ mask { mask | mask-length } ]
| flags { act | suc } ] * [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display IGMP SSM mappings.
display igmp ssm-mapping group-address [ |
{ begin | exclude | include }
regular-expression ]
Available in any view.
Display the multicast group
information created from IGMPv1
and IGMPv2 reports based on the
configured IGMP SSM mappings.
display igmp ssm-mapping group
[ group-address | interface interface-type
interface-number ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Display information about the hosts
that join the group based on IGMP
SSM mappings on an interface.
display igmp ssm-mapping host interface
interface-type interface-number group
group-address source source-address [ |
{ begin | exclude | include }
regular-expression ]
Available in any view.