Re: IGMP Filter

From: WorkerBee (ciscobee@gmail.com)
Date: Thu Oct 19 2006 - 13:20:41 ART


Global Level, you define 2 commands

  (config)# ip igmp filter
  (config)# ip igmp profile <profile number>

Interface Level, you apply the filter to the respective interface

 (config-if)# ip igmp filter <profile number>

-- Globally disable ip igmp filter will disable all applied interface
igmp filters --

 (config)#no ip igmp filter
    % Warning: all the existing IGMP filters are now disabled

Rack1SW2(config)#ip igmp ?
  filter IGMP Filter Enable
  immediate-leave Leave groups immediately without sending last member query,
                   use for one host network only
  limit IGMP limit
  profile IGMP Filter Profile
  snooping Global IGMP Snooping enable for Catalyst Vlans
  ssm-map SSM mapping commands
  vrf Select VPN Routing/Forwarding instance

Use the ip igmp filter interface configuration command to control
whether or not all hosts on a Layer 2 interface can join one or more
IP multicast groups by applying an Internet Group Management Protocol
(IGMP) profile to the interface. Use the no form of this command to
remove the specified profile from the interface.

Rack1SW2(config-if)#ip igmp filter ?
  <1-4294967295> IGMP profile number

On 10/19/06, STEELFIN <steelfin@gmail.com> wrote:
> Hi,
>
> My understanding of IGMP filtering on a switch is to create an IGMP profile
> and then enable the IGMP filter on the interface to either permit or deny
> multicast groups on a per interface basis. However the command "ip igmp
> filter" is also avaible globally.
>
> 1. Is IP IGMP FILTER command required in global configuration mode to
> enable IGMP filtering on the switch?
>
> 2. If it is not required to be configured globally, what is this global
> conifguration command used for?
>
> Thanks
>
> SF
>
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