From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: law@dodinc.com
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Bizarre network issue
Date: 06 Oct 2002 00:27:24 +0100 [thread overview]
Message-ID: <1033860444.4079.29.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <3D9F7169.8020008@dodinc.com>
On Sun, 2002-10-06 at 00:10, Lawrence A. Wimble wrote:
> 1. ARP ... tcpdump shows both the request AND reply.
> 2. PING ... Getting approx 120ms round trip with the MHX-910s (23ms null
> modem)
> 3. UDP ... Works perfectly with netcat in both directions.
>
> Here's what *is not* working:
>
> 4. TCP .... tcpdump shows the SYN packet, but no SYN/ACK ever appears
> 5. ICMP 3/3 ... If I try a UDP session when there's no-body "listening"
> on that
> remote port, no "Port Unreachable" message is ever sent back to the
> sending host.
I'll take a quick guess. Your faked mac address has bit 0 of the first
byte set.
next prev parent reply other threads:[~2002-10-05 23:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-05 23:10 Lawrence A. Wimble
2002-10-05 23:27 ` Alan Cox [this message]
2002-10-06 3:03 ` Mazhar Memon
2002-10-06 16:44 ` Alan Cox
2002-10-07 11:27 ` Lawrence A. Wimble
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