From owner-freebsd-net Wed Aug 16 8:26:59 2000 Delivered-To: freebsd-net@freebsd.org Received: from mail.uni-bielefeld.de (mail2.uni-bielefeld.de [129.70.4.90]) by hub.freebsd.org (Postfix) with ESMTP id A442F37C87C for ; Wed, 16 Aug 2000 08:26:37 -0700 (PDT) (envelope-from bfischer@Techfak.uni-bielefeld.de) Received: from frolic.no-support.loc (ppp36-82.hrz.uni-bielefeld.de [129.70.36.82]) by mail.uni-bielefeld.de (Sun Internet Mail Server sims.4.0.2000.05.17.04.13.p6) with ESMTP id <0FZE00H705JASV@mail.uni-bielefeld.de> for freebsd-net@FreeBSD.ORG; Wed, 16 Aug 2000 17:26:30 +0200 (MET DST) Received: (from bjoern@localhost) by frolic.no-support.loc (8.9.3/8.9.3) id RAA00993; Wed, 16 Aug 2000 17:23:16 +0200 (CEST envelope-from bjoern) Date: Wed, 16 Aug 2000 17:23:15 +0200 From: Bjoern Fischer Subject: Re: Sending multicast packets In-reply-to: <20000816095123.290.qmail@web3003.mail.yahoo.com>; from deepika_77@yahoo.com on Wed, Aug 16, 2000 at 02:51:23AM -0700 To: deepika kakrania Cc: freebsd-net@FreeBSD.ORG Message-id: <20000816172315.A490@frolic.no-support.loc> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-disposition: inline Content-transfer-encoding: quoted-printable User-Agent: Mutt/1.2.4i References: <20000816095123.290.qmail@web3003.mail.yahoo.com> Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, Aug 16, 2000 at 02:51:23AM -0700, deepika kakrania wrote: > 2)both programs will be sending and receiving > packets.In this, both applications first join > multicast group and then one application sends packet > to this multicast group and other will read these > packets and then will write back same packet which > should be read by first application. But here, second > application doesn't receive the first packet itself. > Here also, tcpdump doesn't show any packets flowing > between these two routers. Do the processes join with INADDR_ANY? Do proper multicast routes exist on the hosts (or default routes)? Remember that not a host joins a group but an interface. Bj=F6rn --=20 -----BEGIN GEEK CODE BLOCK----- GCS d--(+) s++: a- C+++(-) UB++++OSI++++$ P+++(-) L---(++) !E W- N+ o>+ K- !w !O !M !V PS++ PE- PGP++ t+++ !5 X++ tv- b+++ D++ G e+ h-- y+=20 ------END GEEK CODE BLOCK------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message