>Hi Guys,
>
>Windows 2k3
>DHCP Service Enabled.
>
>I have a win2k3 server running a DHCP server. I have set to use IP pool of 10.0.0.1-10.0.1.254 netmask of 255.0.0.0. But somtimes the DHCP server assigns Ip begiining with 192.xxx.xxx.xxx and 169.xxx.xxx.xxx on our workstations. Please walk me thru with this problem.

Do you really need 510 IP addresses on your local subnet? Assuming you do, your subnet mask should be 255.255.254.0. If you really only need 255, your address range could be 10.0.0.1-10.0.0.255 with a subnet mask of 255.255.255.0.

If some stations are getting a 192.168.xxx.xxx address, chances are there is another DHCP server on your network - probably a wireless or wired router. It could be that you have a notebook computer that has both a wired 10/100 port and a wireless card. In that case the wired connection could be getting a 10.xxx.xxx.xxx address, and the wireless adapter a 192.168.xxx.xxx address. This is completely valid (the machine is "multi-homed") but if you don't want that you'll need to disable the wireless adapter or reconfigure the wireless router so its DHCP server is disabled.

Addresses starting with 169 are what get assigned under Windows XP if a DHCP server cannot be found. Either there is a bad connection or, in the case of a laptop as outlined above, it might not be able to connect to a wired DHCP server to get an address.