Multicast IGMP join limiting

From: mahmoud genidy (ccie.mahmoud@gmail.com)
Date: Wed Dec 03 2008 - 10:21:53 ARST

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Hi,

I have Layer 3 switch (Catalyst with IP routing enabled). I need to drop
IGMP join messages of specific multicast group coming from specific port say
FA0/1.

I was thinking about two options and I'm not sure which one is the best
answer:

1- ip igmp snooping access-group command in interface level of fa0/1 of the
switch. With the access list denying igmp traffic from any host to the
multicast group

2- ip igmp access-group command in interface level of fa0/1 of the switch.
With the same access-list which denies the specific multicast group.

Which command is the right in this case?

Thanks,

Mahmoud

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