Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring Multicast Layer 2 (Rev. 03)
IGMP Snooping
© 2008 Foundry Networks, Inc.
Page 17 of 43
Setting the Query Source IP Addresses to Zeroes
The
ip igmp snooping query-source-ip-zero
command, in Global Configuration mode, enables
generating queries (on Leave and on xSTP change) with source IP address that is all zeros (i.e.
0.0.0.0) according to the
draft-ietf-magma-snoop-11.txt
draft. The
no
form of the command sets the
source IP address of the queries to default.
NOTE
Windows clients do not accept queries with source IP address 0.0.0.0.
By default, the source IP address of the queries is the IP address of the IP interface (sw
N
). If the
VLAN is not attached to any IP interface, the IP address will be the IP address of the IP interface
sw0.
Command Syntax
device-name
(config)#
ip igmp snooping query-source-ip-zero
device-name
(config)#
no ip igmp snooping query-source-ip-zero
Displaying the IGMP Snooping Configuration
Table 5
lists the IGMP Snooping display commands.
Table 5: IGMP Snooping Display Commands
Command
Description
show ip igmp snooping
Displays the IGMP Snooping information on the VLANs.
show ip igmp snooping
mrouter
Displays the multicast router interfaces.
show ip igmp snooping
router-timers
Displays the multicast router timer to synchronize IGMP
Snooping.
show mac-address-table
multicast
Displays user-configured and/or dynamically learned IGMP
multicast MAC addresses.
Displaying the IGMP Snooping VLAN Information
The
show ip igmp snooping
command, in Privileged (Enable) mode, displays the IGMP Snooping
information on the VLANs.
Command Syntax
device-name
#
show ip igmp snooping
[
vlan <vlan-id>
]
Argument Description
vlan
<vlan-id>
(Optional). VLAN ID value in the range <1-4094>.