Collisions/Global IP

[Ben]

Win2k advanced server running VPN and Terminal Service.
Server NIC starts to broadcast packets about an hour after
assigning a global ip address to it. Up until the
collisions start happening everything works great. I can
VPN, log in, map drives, terminal, etc. Then you can see
collisions on the wan port going 1000MPH. Once I
disconect the server from the switch the network calms
down and everything works just fine. If I reboot it will
give me about another hour before it starts again. I've
tried all of the following but still can't figure it out.


*Replaced System Board containing 2 onboard 10/100/1000
NICs.

*Tried each nic with the same static IP and outside global
IP. Both did the same thing.

*Assigned new inside static IP and different global IP.
Same thing.

*check for viruses. None

*Checked DNS settings and Fowarders.

*Stopped fowarding UDP packets on ports 137 and 138.

Thanks for the help,

Ben

 

[Herb Martin]

It's uncommon but NICs have been known to become "screamers";
repetively sending packets or broadcasting without reason.

Have you tried swapping out the NIC(s)

 

[Ben]

Thanks Herb. The NIC's are integrated and I did have the
system board swapped out. What is so strange is that the
one I use doesn't act up until I assign the global IP. I
will try to install a third party nic today and see what
happens. Let me know if you have anymore suggestions.
I'll let you know,

Ben