An easy one: Multicast...from out of nowhere

Happy Friday,
Here’s the deal:
I just flashed my WRT54G’s existing dd-wrt with an upgrade.

The new firmware has a few minor differences - like multicast filtering. If I uncheck it…

Suddenly (in CFP3) I’m logging IGMP attempts from my gateway (192.168.blah blah) to

Didn’t happen yesterday or last week or last year for that matter.

Why suddenly - with the option to filter - do I have this traffic to filter? Huh? Tell me.

I read the Wiki. I still don’t get it. Yes, I’m that dumb.

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