Ip Igmp Source-Address-Check - Allied Telesis AT-AR3050S Command Reference Manual

IGMP IGMP S C
AND NOOPING OMMANDS
- -
IP IGMP SOURCE ADDRESS CHECK

ip igmp source-address-check

Overview This command enables the checking of the Source Address for an IGMP Report,
rejecting any IGMP Reports originating on devices outside of the local subnet.
Use the no variant of this command to disable the checking of the Source Address
for an IGMP Report, which allows IGMP Reports from devices outside of the local
subnet.
ip igmp source-address-check
Syntax
no ip igmp source-address-check
Default Source address checking for IGMP Reports is enabled by default.
Mode Interface Configuration for a VLAN interface.
Usage This is a security feature, and should be enabled unless IGMP Reports from outside
the local subnet are expected, for example, if Multicast VLAN Registration is active
in the network.
The no variant of this command is required to disable the IGMP Report source
address checking feature in networks that use Multicast VLAN Registration to allow
IGMP Reports from devices outside of the local subnet.
Examples To deny IGMP Reports from outside the current subnet for the VLAN interface
vlan2, use the following commands:
awplus#
awplus(config)#
awplus(config-if)#
To allow IGMP Reports from outside the current subnet for the VLAN interface
vlan2, use the following commands:
awplus#
awplus(config)#
awplus(config-if)#
Validation show ip igmp interface
Commands
show running-config
C613-50077-01 REV A
configure terminal
interface vlan2
ip igmp source-address-check
configure terminal
interface vlan2
no ip igmp source-address-check
Command Reference for AT-AR3050S
AlliedWare Plus™ Operating System - Version 5.4.5-2.x
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