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Date: Tue, 21 Mar 2017 17:05:20 -0400
From: Quartz <quartz@sneakertech.com>
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Subject: Filtering multicast and/or 6to4?
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After all these years, I'm still not 100% sure I understand multicast 
and 6to4. I'm trying to figure out when/why/if I should be filtering 
stuff, and in which direction(s). Is this the correct list to ask these 
sorts of questions?