Check your network cabling. I'd suspect that B may have a bad receive pair. Also make sure that you didn't plug into an uplink port if you're not supposed to, or that you didn't hit an uplink button on the hub.
--Rich Jonathan Matthews wrote: > Hi - > > Sorry for this intrusion into your inbox for what I know will be a simple > RTFM question, but the trouble is that I've RTFM lots to get this far (and > things *were* working), and it's all gone pear-shaped simply (as far as *I* > can see) because I moved my boxen up a flight of stairs! > > I can post a bunch of /etc files if needs be, but the simple problem is that > I can't telnet to, ftp or even ping my local machines, on eth0. > > The most telling symptom (I hope) is that when host A pings host B, the hub > only registers activity on host A's port, but when B pings A, both ports are > active, yet both pings record 100% packet loss. > > Does this ring any bells with anybody? > > For the record, /etc/hosts.deny is disabled on both boxen, and they're both > running Debian 2.2 (r0 on one, r2 on the other). > Telnet, ftp (and any other service that is running on either box) ireturns a > "no route to host", and unless I'm blind, /etc/network/interfaces and > /etc/hosts tally on both machines. > This was all working before the weekend, and although I'm sure I didn't do > much to them over the duration, I was muckoing around with some scancodes to > get my "Internet Ready" Compaq keyboard working. I've backed those changes > out, but this hasn't improved things at all. > > I'd really, really (really) appreciate some help on this! As I said before, > just shout out a /etc file you'd like to see, and it'll be in the post the > next day. > > Cheers! > > jc > -- _________________________________________________________ Rich Puhek ETN Systems Inc. _________________________________________________________