From owner-freebsd-net Wed Aug 16 5:36:59 2000 Delivered-To: freebsd-net@freebsd.org Received: from sasi.com (samar.sasi.com.56.164.164.in-addr.arpa [164.164.56.2]) by hub.freebsd.org (Postfix) with ESMTP id 4210A37C0F3 for ; Wed, 16 Aug 2000 05:36:53 -0700 (PDT) (envelope-from gbnaidu@sasi.com) Received: from samar (sasi.com [164.164.56.2]) by sasi.com (8.9.3/8.9.3) with SMTP id SAA19113 for ; Wed, 16 Aug 2000 18:06:32 +0530 (IST) Received: from pcd75.sasi.com ([10.0.16.75]) by sasi.com; Wed, 16 Aug 2000 18:06:27 +0000 (IST) Received: from localhost (gbnaidu@localhost) by pcd75.sasi.com (8.9.3/8.9.3) with ESMTP id SAA00903 for ; Wed, 16 Aug 2000 18:03:10 +0530 Date: Wed, 16 Aug 2000 18:03:09 +0530 (IST) From: "G.B.Naidu" To: freebsd-net@FreeBSD.org Subject: multicast packets & tcpdump... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org HI, I am running FreeBSD 3.3-RELEASE. I was looking at the tcpdump output while multicast packets are flowing between two routers, tcpdump shows the source and destination address as "224.0.0.2". It should show the source address of the multicast packet rather than the multicast group address. I found that, when the receiver does the recvfrom(), the address returned shows the multicast group address. Is this a bug or feature? On linux this shows the source address. thanks --gb -- Never trust an operating system you don't have sources for. ;-) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message