[c-nsp] Preventing host with lower ip to become IGMP querier

[Phil Mayers]

On 26/10/10 15:22, Pavel Dimow wrote:
> Hi Phil,
>
> my understanding is that when not using PIM (because this is a single
> switch and beside that have SMI software without PIM support) the
> switch will become querier. Which is fine, but as soon as it hears PIM
> hello message
> on any interface it will "designate" that interface as the one where
> is connected multicast router and will immediately
> forward all streams to that port, which in my case is not desired
> action. I tried to filter all pim messages with ACL but
> I think thats irrelevant as IGMP snooping comes into the play well before ACL.
>
> Am I right? :)

I believe so; this was discussed on the list recently.

Short of enabling PIM-snooping (if your platform supports it) you don't 
have many options I'm afraid.