Date: Mon, 8 Oct 2001 14:08:48 -0700 From: "Crist J. Clark" <cristjc@earthlink.net> To: Arpith Jacob <arpith@geocities.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Firewall troubles Message-ID: <20011008140848.F350@blossom.cjclark.org> In-Reply-To: <OE463TCmIiTkBYezAcR00009b7a@hotmail.com>; from arpith@geocities.com on Thu, Oct 04, 2001 at 11:35:47PM %2B0530 References: <OE32d490U3s91NGXpxw00003bd4@hotmail.com> <20011004140520.H297@blossom.cjclark.org> <OE73THfyQgeDKvPEkGh00005be9@hotmail.com> <20011004234809.N297@blossom.cjclark.org> <OE463TCmIiTkBYezAcR00009b7a@hotmail.com>
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On Thu, Oct 04, 2001 at 11:35:47PM +0530, Arpith Jacob wrote:
>
> ----- Original Message -----
> From: Crist J. Clark <cristjc@earthlink.net>
> To: Arpith Jacob <arpith@geocities.com>
>
> > > Heres the ifconfig output from p1.scully, running freebsd:
> > >
> > > ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > > inet 172.25.2.2 netmask 0xffffff00 broadcast 172.25.2.255
> > > inet6 fe80::e891:f9bc:b7ac:487d%ed0 prefixlen 64 scopeid 0x1
> > > ether a5:a5:a5:a5:a5:a5
> > ^^^^^^^^^^^^^^^^^
> > Are you masking this? If not, something is wrong.
>
> Nope, thats what I got from the ifconfig output. That is the address of the
> card.
>
> Do I have a problem with my network card? Is there any other way of
> detecting the address of my network card?
That's what it looks like. It probably says what its burned in address
is somewhere on the card. Bet the last three bytes are ac:48:7d. Who
is the manufacturer? We could use that to guess the first three. But I
am not sure what that would get you.
> I can telnet/ftp into the p3, and get the text output on my p1 screen. So,
> the p3 can obviously send back the output using the above ether address.
Strange. But something is very weird at a low level in the stack. I
can say with some confidence that it is not a firewall issue, but most
likely something down at the driver level or broken hardware.
--
Crist J. Clark cjclark@alum.mit.edu
cjclark@jhu.edu
cjc@freebsd.org
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