On Mon, 06 Dec 2010 17:02:40 PST, somebody said: > >>> From: [email protected] > >>>> From: [email protected] > >>> Date: Fri, 03 Dec 2010 20:00:15 -0500 > > >>>> 224/3 > >>> Oh. And don't forget to do *bidirectional* filtering of these addresses. > >>> ;) > >> Ahh, not quite. Blocking 224/3 bi-directionally might cause a few issues > >> if you accept multicast traffic from anyone.
If you're smart enough to actually do multicast, you're smart enough to remove the filter for 224/3. If you're not smart enough to remove the filter, or you're smart enough but you're one of the 95% that doesn't do multicast, your site should be doing bidirectional filtering of 224/3. ;) (Do you really want your users emitting outbound packets to/from 224/3 if you don't actually do multicast? Probably not...)
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