Mark Wilkinson wrote:
I try to telnet into these boxes from home (NTL dialup modem) and can't access them. I can access all the other machines on that subnet no problem but not those two machines.
Don't use telnet, do use ssh :-)
Can you ping the new machines from other machines on that subnet? or even better login to them? can you see them if you run tcpdump or ethereal? arpwatch may also help here.
In addition, those two machines can't see the router that's attached to the hub.
I presume you can do the above then but can't ping the router, again what happens while running tcpdump? do these machines have the correct subnet masks? what do their routing tables look like? what happens if you try a traceroute to your router? and have you checked the interface statistics?
I'm running no clever firewalling or anything on any of those machines.
Are you sure this is correct? is there any firewalling on the router?
My thoughts are that the switch is misbehaving and is about to smoke or that the router is selectively ignoring certain addresses...
Possibly, but like Steve said it is more likely human error with a working machine suddenly not working and a new one not working. It seems likely that your tech made the same mistake twice!
If you still are having trouble later you can mail me off list if it is more appropriate. Adam
PS sorry about the earlier mail coming from the future, damn M$ changing my clock for me again! PPS if this sounds like another post I just made I'm sorry but I didn't see the original turn up and netscape crashed just around when I sent it.