- DHCP!
- Posted by CGed on March 28th, 2007
Some of my clients are taking a up to 10 minutes to log on and have also
received IP address outside of my DHCP address pool range and are also
receiving a different DNS server than is listed in the scope options.
I have deleted and recreated the scope to no avail. HELP!!!
- Posted by Herb Martin on March 29th, 2007
"CGed" <CGed@discussions.microsoft.com> wrote in message
news:1674C6E5-B2CE-4C98-B5C7-F9899B6E90F7@microsoft.com...
Unless the IP range is 169.254.x.y you have a ROGUE DHCP server on
your net.
Find the DHCP server address and track it down. DHCP servers are
promiscuous as are DHCP clients so you need to find the culprit and
kill him (errr...it. <grin>)
Look first at purpose built routers but also for RRAS services on Servers
or even XP/2000 running ICS (Internet Connection Sharing.)
Worst case the IP address will give you the Subnet on which the server
lives.
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
- Posted by Kay Davis on March 29th, 2007
Can I suggest donig the following
1) open a command Prompt on a machine that you suspect rceived an IP address
from the Rogue server.
2) Type Ipconfig /all
Starting from the bottom You will have when the lease expires, When it was
Granted (Which may help you track down the Server) then the DNS Servers.
Just above the DNS entries you should see a line that says DHCP Server. This
is the IP address of the server that Issued the address.
3) Take large rubber mallet and apply to the fingers of the one who
configured it <grin>
Hope This helps ( Been there done that and confinscated the wireless router
that was causing it, installed by a sales critter)
Kay
"Herb Martin" <news@learnquick.com> wrote in message
news:Omh2UKbcHHA.4312@TK2MSFTNGP05.phx.gbl...
- Posted by Chris Shooter on March 29th, 2007
CGed wrote:
hi.
i would suggest first of all looking for another DHCP server on the
network, maybe a broadband router or something of that sort