Re: Controlling Access to IP Multicast Groups on 3550

From: Bob Sinclair (bsinclair@netmasterclass.net)
Date: Wed Apr 13 2005 - 19:10:18 GMT-3


Hi Gladston,

Seems to be a question of L3 versus L2 port. My Catalyst 3550 offers the
following commands on routed ports:

CAT2(config)#int f0/18
CAT2(config-if)#no switchport
CAT2(config-if)#ip igmp ?
  access-group IGMP group access group
  helper-address IGMP helper address
  immediate-leave Leave groups immediately without sending last
                              member query, use for one host network only
  join-group IGMP join multicast group
  last-member-query-interval IGMP last member query interval
  querier-timeout IGMP previous querier timeout
  query-interval IGMP host query interval
  query-max-response-time IGMP max query response value
  static-group IGMP static multicast group
  tcn IGMP TCN configuration
  unidirectional-link IGMP unidirectional link multicast routing
  v3lite Enable/Disable IGMPv3 Lite
  version IGMP version

And the following options on Layer 2 ports:

CAT2(config-if)#switchport
CAT2(config-if)#ip igmp ?
  filter set IGMP filter profile number
  max-groups set maximum number of IGMP groups that can be joined
  snooping IGMP snooping configuration

Version is: System image file is "flash:/c3550-i5q3l2-mz.121-20.EA1.bin"

HTH,

Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net

  ----- Original Message -----
  From: gladston@br.ibm.com
  To: ccielab@groupstudy.com
  Sent: Wednesday, April 13, 2005 5:12 PM
  Subject: Controlling Access to IP Multicast Groups on 3550

  Doc CD has this title:

  Controlling Access to IP Multicast Groups

  And shows an example using
  ip igmp access-group access-list-number

  http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225seb/scg/swmc
ast.htm#wp1187805

  It says the doc was posted in Thu Mar 24 22:08:59 PST 2005

  But on versions I tested there is no 'ip igmp access-group", just 'ip igmp
filter..'

  Do you have any information about this?

  Version I tried is 12.1(19)EA1.

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