DHCP Design questions

[rlgaooa]

I have one class C address range to work with. I am using a Windows 2003 server as my dhcp server. I would like to create three subnets to accomplish the following:

a: Provide addresses with short lease times to wireless laptop clients.
b: Provide addresses with longer leases and reservations to hard wired resources such as desktops and printers.
c: Provide 3-4 addresses for guest access straight to the internet.

I have a layer 3 switch that I can create VLANs to segment the traffic. I only have one gateway router to the internet. I'm not sure how to create the dhcp solution to support this.

 

[ADB100]

You need to enable BOOTP/DHCP Forwarding to the DHCP Servers IP address on your Layer-3 switch on all the VLAN's except the one where the DHCP Server is. Then just configure the Scopes as you see fit.

What type of switch is it? if its Cisco I can help you further let me know.

HTH

Andy

 

[SimonDavies]

I would stress the importance of not using DHCP for static devices such as printers. I would also suggest that you add a User Class to your DHCP, this is basically where you would create the scope for the laptop users and assign it to a User Class, you would then need to ensure that wireless laptops are also configured for that class type.
Have a look here for more info.

http://www.windowsitpro.com/Articles/Print.cfm?Action=Print&ArticleID=7983

 

[dkediger]

I always use an exclusion range to set aside space and create static IPs for printers, switch/firewall management interfaces, and the like.

 

[rlgaooa]

The Cisco switch is a WS-C3560-24T. The scopes the I would need to create would all have to be within the one class C subnet range. I was thinking of using 10.10.10.0/25, 10.10.10.128/26 and 10.10.10.192/29. This would give me 126 addresses for laptops, 62 addresses for the desktops and printers, and 4 addresses for the guests. With this scenerio, would the guests be excluded from browsing the internal network?