From owner-freebsd-net Wed Mar 14 3: 9: 5 2001 Delivered-To: freebsd-net@freebsd.org Received: from filk.iinet.net.au (syncopation-dns.iinet.net.au [203.59.24.29]) by hub.freebsd.org (Postfix) with SMTP id E234637B718 for ; Wed, 14 Mar 2001 03:09:00 -0800 (PST) (envelope-from julian@elischer.org) Received: (qmail 30797 invoked by uid 666); 14 Mar 2001 11:10:08 -0000 Received: from i003-078.nv.iinet.net.au (HELO elischer.org) (203.59.3.78) by mail.m.iinet.net.au with SMTP; 14 Mar 2001 11:10:08 -0000 Message-ID: <3AAF5124.5F201288@elischer.org> Date: Wed, 14 Mar 2001 03:08:20 -0800 From: Julian Elischer X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 5.0-CURRENT i386) X-Accept-Language: en, hu MIME-Version: 1.0 To: Satyajeet Seth Cc: net@freebsd.org, gbnaidu@sasken.com Subject: Re: Ping Problem References: Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Satyajeet Seth wrote: > > > An upgrade within the '4' family should be pretty painless. > > I tried using a FreeBSD4.1.1 system, but the problem is still there. > I suppose for now, my hack on FreeBSD4.1 will serve the purpose. Am I > correct? > well 4.1.1 has the autosrc command which does what you are doing with your hack. > > I tried putting 'options BRIDGE' in my configuration file. But now ARP > resolution of pseudo ethernet interface returned MAC address of fxp0. So I > reverted back. wierd this suggests a packet somewhere is getting misdirected somewhere > > > > > > > 2. #ping 10.0.36.134 > > > This does not work. > > > > probably the arp packets are never getting back to the right interface > > > > You need to do more packet tracing. > > does the packet hit the wire? > Yes > > does the target respond? > Yes > > is there a arp packet before it? > Yes > > does the dest respond tothe arp? > Yes > > does the response appear in the arp table? > Yes > > does the destination in turn send an arp request before responding to > the ping? > No. > > > does the arp response > (broadcast) get assigned to an interface? > > does it get answered? > > from which interface? > > does the response hit the wire? > The answer to above three queries is no, because destination does not in > turn send an arp request before responding to the ping. I guess it learns from the arp enquiry. > > The ICMP request packets are reaching pseudo ethernet interface. But > it is not responding back. This happens even if an ARP entry for the > destination is there. Could you suggest what could be the problem? > > > > > > why does the PC send to the default router? netmask problems I think > > mask == ffffffff is probably a problem. > > Setting the same mask as fxp0 helps. does this mean that your problem is solved or just helped a bit? > > Thanks > Satya -- __--_|\ Julian Elischer / \ julian@elischer.org ( OZ ) World tour 2000-2001 ---> X_.---._/ v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message