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Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 18 Configuring IGMP Snooping
Configuring IGMP Filtering and Throttling
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range: Specifies a range of IP addresses for the profile. You can enter a single IP address or a range
with a start and an end address.
The default is for the switch to have no IGMP profiles configured. When a profile is configured, if
neither the permit nor deny keyword is included, the default is to deny access to the range of IP
addresses.
Beginning in privileged EXEC mode, follow these steps to create an IGMP profile:
To delete a profile, use the no ip igmp profile profile number global configuration command.
To delete an IP multicast address or range of IP multicast addresses, use the no range ip multicast
address IGMP profile configuration command.
This example shows how to create IGMP profile 4 allowing access to the single IP multicast address and
how to verify the configuration. If the action was to deny (the default), it would not appear in the show
ip igmp profile output display.
Switch(config)#
ip igmp profile 4
Switch(config-igmp-profile)#
permit
Switch(config-igmp-profile)#
range 229.9.9.0
Switch(config-igmp-profile)#
end
Switch#
show ip igmp profile 4
IGMP Profile 4
permit
range 229.9.9.0 229.9.9.0
Applying IGMP Profiles
To control access as defined in an IGMP profile, use the ip igmp filter interface configuration command
to apply the profile to the appropriate interfaces. You can apply IGMP profiles only to Layer 2 access
ports; you cannot apply IGMP profiles to routed ports or SVIs. You cannot apply profiles to ports that
belong to an EtherChannel port group. You can apply a profile to multiple interfaces, but each interface
can have only one profile applied to it.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
ip igmp profile profile number
Assign a number to the profile you are configuring, and enter IGMP profile
configuration mode. The profile umber range is 1 to 4294967295.
Step 3
permit | deny
(Optional) Set the action to permit or deny access to the IP multicast address.
If no action is configured, the default for the profile is to deny access.
Step 4
range ip multicast address
Enter the IP multicast address or range of IP multicast addresses to which
access is being controlled. If entering a range, enter the low IP multicast
address, a space, and the high IP multicast address.
You can use the range command multiple times to enter multiple addresses
or ranges of addresses.
Step 5
end
Return to privileged EXEC mode.
Step 6
show ip igmp profile profile number Verify the profile configuration.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.
