Weird DHCP sever

  • Thread starter Thread starter Jack Matthews
  • Start date Start date
J

Jack Matthews

Windows 2000 servers one DNS (Pro Domani Controller) xxx.xxx.0.29 is
handling all DNS traffic.I have a DHCP server on same network and it is
xxx.xxx.0.22. However my DHCP server shows up on clients as xxx.xxx.0.31. I
do not have a .31 node and it is giving my clients and xxx.xxx.1.xx address.
When I ping the .31 address it returns a request timed out. What is going
on? Help. Intel dell servers fully patched on service pack 4.
 
Jack Matthews said:
Windows 2000 servers one DNS (Pro Domani Controller) xxx.xxx.0.29 is
handling all DNS traffic.I have a DHCP server on same network and it is
xxx.xxx.0.22. However my DHCP server shows up on clients as xxx.xxx.0.31. I
do not have a .31 node and it is giving my clients and xxx.xxx.1.xx
Click to expand...
address.

Well, it sounds like a "rogue" DHCP server.

ICS (Win9x, W2kPro or XP), NAT (usually not
since it must be disabled), a router (especially
hardware), or just a Server with DHCP enabled
and forgotten.
When I ping the .31 address it returns a request timed out. What is going
on? Help. Intel dell servers fully patched on service pack 4.
Click to expand...

It could also be that your DHCP server is multihomed and the
"other" NIC is being used to identify it.
 
Ya know now that I think about it I do have a partially setup VPN Netscreen
5xt on line maybe that is the culprit.
 
Ok I disconnected the VPN, now client's ipconfig says the DHCP is not
availible. It populates the DHCP field with 255.255.255.255. What is up?
 
Jack Matthews said:
Ok I disconnected the VPN, now client's ipconfig says the DHCP is not
availible. It populates the DHCP field with 255.255.255.255. What is up?
Click to expand...

So the "real" DHCP is perhaps not properly configured
or is across a router (which doesn't propagate the DHCP
client broadcasts, DHCP_Discover)?
 
Well the problem was two fold one there was a rogue DHCP coming from a VPN
and the DHCP server had a full disk. That did it I'm back up and running. Is
there any good supervisory software out there to control DHCP, DNS, TS, and
Active Directory?

Thanks,
 
Jack,

The built-in consoles are usually good enough for managing the services and
servers themselves, but it sounds like you need a monitoring solution more
than anything. I would suggest you look at MOM or at the Microsoft Branch
Office Monitor.
 
Back
Top