2 DHCP's Running On 1 Network ?

[sirsixx]

Hello, I need information regarding Netware 4.1, Windows 2000 running as a proxy server and DHCP servers.
The situation is this - Im a designer in a drawing office and im doing an MCP, so i am allowed to get involved with some of the IT stuff at work, We run Netware 4.1 and nobody in the IT department has much idea about any serious network stuff (When I asked the about the OSI model i got blank looks) - So anyway - we recently got ADSL and are running third party email sorting software on a Windows 2000 machine (which they specified), we also use this machine as a proxy server to connect to the internet with. Our main file server is running Netware 4.1
Now to the problem, i have noticed that all of the new machines that were built by the IT department have their IP addresses manualy set, when i asked why i was told that the automatic IP assigment through the DHCP server would not let the new machines connect to the Proxy server.. no one knows why? so i checked some of the machines using 'winipcfg' only to find that the older machines in the company run fine with what i assume to be the file server setting their IP address.
So i setup one of the new machines to get its IP address from the DHCP server, only to find that the IP address was being set by the Proxy server, with a completely different subnet mask to the old machines.
On the new machines the DHCP server IP is 10.0.0.99 with a subnet mask of 255.255.255.0 while on the old machines the DHCP server is on IP 10.0.0.1 and the subnet mask is set as 255.0.0.0
Now i checked the IP address on the Proxy server and it is 10.0.0.99
The DNS server is also listed different on each machine.
So whats the deal here? should not all of the machines be on the same subnet? and why are both the file server and the proxy server setting IP addresses? Does this mean there are 2 DHCP servers running at the same time? is this why the new machines cant use automatic IP?
I hope i have covered all of the information required and im sorry about the spelling and (maybe) asking stupid questions but im just learning this stuff.
Thank you
Sir Sixx X-)

 

[tlcscousin]

10.0.0.99 is a class A address and uses a subnet mask of 255.0.0.0 a subnet mask of 255.255.255.0 is a class C address and the Ip address should start at 192 .0.0.0 and work up from there. Class A is 1 to 126 B is 128 to 191 class C is 192 up.
Class A uses subnet of 255.0.0.0 B=255.255.0.0 c=255.255.255.0

 

[TheBoySmith]

in winipcfg it should tell you tell you the ip address of the dhcp server it got its address from. Check this info and this will tell you if you have a dhcp server on the nt box. If you have just unload or what ever you do on a 2000 box to disable it and then reboot the pc. It should now get its address from the novell dhcp. Also, if the new pc's don't have the netware client on the dhcp may not work properly. Microsoft's dhcp implementation is a microsoft standard, not always the same as other standards. Lee Smith
Xenon Network Services
Snr. Technical Support
LSmith@xenon-uk.co.uk