-Palm in face-
There was a cable with different boots on either end that suckered me in.
Thanks for all the help everybody. I really appreciate the quick, if
embarrassing, resolution.
- Justin
Jason Ellison wrote:
I would make sure that you don't have a cable looping back into your
switch. I have definitely seen that type of behavior before when
someone upgraded a switch and accidentally plugged a cable from one
port on the switch to another.
Jason
Justin Walker wrote:
My office network has descended into chaos for some reason and I'm
having a hell of a time sorting it out. I'm hoping someone can help
bail me out. We need it up and running ASAP.
We have one outgoing WAN IP, then a machine running RHEL 4 acting as
a gateway server (with 2 NICs). Internet comes in from the wall,
goes to eth0, comes out of eth1 (which has a LAN IP of 192.168.0.7
<http://192.168.0.7>), then to a 16-port switch. A dozen other
computers are attached to said switch and all have IPs in the
192.168.0.x range.
We used to have a series of tiered 5/8 port switches but got a single
16 port to reduce cable clutter and simplify the networking (so we
thought). For some reason now, some of the computers can ping each
other and get to the net, but others cannot. And the ones that can
sporadically drop. There does not seem to be any logic to which ones
work and which do not. I have 3 identical machines (a linux
cluster), and one works and the other two do not. Some of the
clients run RHEL 4, some Ubuntu, some WinXP - there is no common
factor behind which work and which do not. They all worked yesterday
with the stacked switches - although when I plugged it all back in
the way it was, it doesn't work anymore.
I'm tearing my hair out here. Can anyone help me? The OIT helpdesk
won't help since we're not running Windows. Any suggestions would be
greatly appreciated. If someone was willing to actually come by the
Chemical and Nuclear Engineering building (090 - room 1231) and help
me out, they're welcome to an item from my 'computer parts graveyard'
as a token of my gratitude.
- Justin Walker
