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Date:      Thu, 29 Jun 2000 22:35:57 -0700
From:      Bill Fenner <fenner@research.att.com>
To:        emmanuel.duros@udcast.com
Cc:        freebsd-bugs@freebsd.org, patrick.cipiere@udcast.com
Subject:   Re: mrouted and tcpdump (igmp reports)
Message-ID:  <200006300535.WAA22273@windsor.research.att.com>

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This happens when multicasts get looped back, due to ip_mloopback()'s
historical abuse of looutput().  I thought it was fixed when if_simloop()
was introduced, but perhaps not since you say it happens in 3.4.

  Bill


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