Bizarre network/routing problem

[Janicki at ia-inc.com (Chris Janicki)]

Did you verify its subnet mask?

>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<

On 2/8/01, 3:30:43 PM, John Abreau <jabr at blu.org> wrote regarding Bizarre 
network/routing problem:


> I've got a linux box with a web server that I can't access properly since
> this morning. It's at a colocation site, behind a PIX firewall with a
> static conduit to it on port 80.

> I've got two subnets at the site, with several machines on either side. 
Of
> the four web servers on the PIX's inside subnet, I can access three from
> anywhere (telnet ipaddr 80), but the fourth I can only access from the
> subnet inside the PIX and the subnet immediately outside the PIX.

> I checked the routing tables and ifconfig settings, and there's no
> differences between the machines (aside from the ip and mac addresses, of
> course). The static conduits for the four machines appear to be 
configured
> identically on the PIX (I telnetted to the PIX and did a "write term" to
> get a dump of its current settings). I'm waiting for a couple of our guys
> to arrive at the colocation site to reboot the PIX, just in case the
> settings I'm seeing don't reflect its current behavior.

> This behavior doesn't make sense to me. I can't think of anything that
> would break this one server but not affect the other three identical
> servers.

> What could I be overlooking?

> --
> John Abreau / Executive Director, Boston Linux & Unix
> ICQ#28611923 / AIM abreauj / Email jabr at blu.org

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