Is that host that's sending IGMP joins directly connected or using a trunk
to access this Svi?



On Tue, Apr 3, 2012 at 1:21 PM, marc abel <[email protected]> wrote:

> It is configured with ip pim sparse-mode.
>
>
> On Tue, Apr 3, 2012 at 1:13 PM, Tom Kacprzynski <[email protected]> wrote:
>
>> Is that interface, vlan 201, configured with pim or as an igmp querier? I
>> think that ip igmp access-group only applies if you have that interface act
>> as an IGMP querier which by default does if you enable PIM. If you want to
>> do filtering on any other interface, like layer 2 (no svi) then you could
>> use igmp filter profiles.
>>
>> hope that helps
>>
>> Tom
>>
>>
>> On Tue, Apr 3, 2012 at 12:19 PM, marc abel <[email protected]> wrote:
>>
>>> I am trying to restrict which IGMP group a host can join and I have it
>>> configured like this on all the exit points to the vlan:
>>>
>>> access-list 20 permit 239.1.1.1
>>> interface vlan 201
>>>  ip igmp access-group 20
>>>
>>> However the host can still join any group and when I send a test ping I
>>> recieve a reply. Am I doing it wrong? The 3560 switch guide shows it like
>>> this:
>>>
>>>
>>> To disable groups on an interface, use the *no* *ip igmp access-group*
>>>
>>> interface
>>> configuration command.
>>>
>>> This example shows how to configure hosts attached to a port as able to
>>> join only group 255.2.2.2:
>>>
>>> Switch(config)# access-list 1 255.2.2.2 0.0.0.0
>>>
>>> Switch(config-if)# interface gigabitethernet0/1
>>>
>>> Switch(config-if)# ip igmp access-group 1
>>>
>>> *
>>> *
>>>
>>> *
>>>
>>> *
>>>
>>> The only difference I can tell is they are using a physical interface
>>> where
>>> I am using a VLAN interface.
>>>
>>>
>>> Thank you,
>>>
>>> Marc
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>>
>>
>
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