From: Bob Sinclair (bsinclair@netmasterclass.net)
Date: Wed Sep 22 2004 - 19:02:05 GMT-3
Gladston,
Either of those two scenarios will work. You can block the igmp membership
reports with igmp filters on each disallowed layer 2 interface. If you are
using routers to simulate the host, do not configure PIM on the interface.
The mroute table on the upstream router should not indicate a connected host
on that interface.
You could also disable igmp snooping for the vlan and hard-code the
multicast mac to the permitted interfaces, like so:
no ip igmp snooping vlan 1
mac-address-table static 0100.5e40.0101 vlan 1 interface FastEthernet0/3
HTH
Bob Sinclair
CCIE #10427, CISSP, MCSE
www.netmasterclass.net
----- Original Message -----
From: <gladston@br.ibm.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, September 22, 2004 2:55 PM
Subject: Multicast Limit on 3550
> How would you limit just some hosts connected to a 3550 to receive
> multicast packets destinated to 239.192.1.1?
>
> I am reading "Configuring IGMP Snooping and MVR" but could not find a
> specific answer.
>
> An indirectly way seems to be configure IGMP Profile on each interface.
>
> Globally disabling IGMP and configuring static MACs would work? Or 3550 by
> default forward multicast packets to all ports when IGMP is disabled, as
> 5500 when CGMP is disabled?
>
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