Re: Bizarre network issue

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Sat Oct 05 2002 - 18:27:24 EST


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.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Mon Oct 07 2002 - 22:00:52 EST