Date: Wed, 14 Mar 2001 03:08:20 -0800 From: Julian Elischer <julian@elischer.org> To: Satyajeet Seth <sseth@sasken.com> Cc: net@freebsd.org, gbnaidu@sasken.com Subject: Re: Ping Problem Message-ID: <3AAF5124.5F201288@elischer.org> References: <Pine.GSO.4.30.0103132112480.24779-100000@suns3.sasi.com>
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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
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