2003 DHCP Server and SMC Router on same Network

[tyanni]

My network looks like this:

Cable Modem - Router - Landlords PC

Then, from the router:

Wireless Access Point/Switch - Server w/ static 192.168.x.x IP (DNS, Domain/Active Directory)
- Other Computers w/ 192.168.x.x IP from Router

I've got a the server up and running, and it works fine. However, I would like it to also do DHCP, because I am playing around with RIS, and this works best (and maybe only works) if there is a trusted DHCP server on the network. Plus, its a pain to manually configure the DNS each time someone wants to connect to my network.

Now, I've been told that if I setup the DHCP server on this server, and allow it to give out 10.0.0.x IP's to my machine, this will work since the server has a static Ip and won't realize there is another DHCP server on the network. But I am hesitant to do this, lest my landlord's computer starts grabbing an IP from my server. Should I give my server a different subnet to keep everything distinct?

Thanks!
Tim

 

[Rainsford]

What you want to do probably won't work. DHCP requests are made using a broadcast, and I believe both your router and Windows server will see the broadcast from your landlord's PC and respond. I suspect you'll have to limit the broadcast domain (ie, make a logically seperate network) to make this work. However, I'm not a Windows 2003 DHCP expert, so maybe there is another way to do this.

 

[tyanni]

Is there a way to limit DHCP broadcasts to only members of the domain? Or is this the normal behavior?

 

[Ryoga]

Can't you disable the DHCP server on the router through the web portal?

 

[tyanni]

Yes, but I can't do this because its my landlords router, and I am not serving IP addresses to him. The whole idea is to have a completely seperate network from my landlord.

 

[mboy]

What about a dual NIC setup? Use one to connect to the router.
THEn use another for your LAN and run DHCP to that?

 

[tyanni]

I'm not sure that would work for RIS, however, as how would the boot disk know which NIC to use to grab an IP?