As others have mentioned: why not subnet your address range? Or, given your requirements, you could assign static addresses to the machines from your 201-203 range. Don't allow your DHCP servers to hand out addresses that you've staticly assigned. Effectively you're converting some of your allocated DHCP range to static.
Cheers Ken From: Vicky Spelshaus [mailto:[email protected]] Sent: Monday, 10 January 2011 11:42 PM To: NT System Admin Issues Subject: Re: IP range for labs More information: It would be approximately 150 machines. I'm one of only 2 people supporting about 150 faculty/staff and over 1000 students, appromimately 450 machines, the network infrastructure, phone system, security cameras, copiers, help desk, training,distance ed class schedule (proctoring and remote instructor support) - basically everything using electricity. Needless to say we are stretched VERY thin. This campus is one of 13 supported by a central office. They 'assigned' our IP structure. xxx.xxx.200.xxx is 'reserved' for static IPs and 201-203 is set for distribution. I don't have enough addresses in the 200 range to use. If I reserved - in order as she wants - within the distribution ranges, what would happen if I tried to assign an IP that was already in use? Would DHCP release that IP automatically or would I need to go aroung rebooting machines? Again sorry if I'm asking dumb questions. It's been awhile since I even looked at DHCP. On Mon, Jan 10, 2011 at 8:48 AM, Raper, Jonathan - Eagle <[email protected]<mailto:[email protected]>> wrote: "I could reserve them, but they won't be in a nice sequential order like she wants." Why not? Couldn't you reserve the range for her classroom and assign IP Addresses to individual MAC addresses in whatever order she wants? (I'm assuming you mean that she essentially wants IP addresses assigned in some kind of order that is in relation to the way the room is physically laid out?) ...Aside from the fact that in doing so you would be setting a precedent. This may or may not be a good thing for your sanity, depending on how big of a campus you are supporting. Jonathan L. Raper, A+, MCSA, MCSE Technology Coordinator Eagle Physicians & Associates, PA [email protected]<mailto:[email protected]> www.eaglemds.com<http://www.eaglemds.com> ________________________________ From: Vicky Spelshaus [mailto:[email protected]<mailto:[email protected]>] Sent: Monday, January 10, 2011 9:41 AM To: NT System Admin Issues Subject: IP range for labs Please forgive me if I'm asking a stupid question... not enough coffee yet. I have a situation where one of the professors wants to keep students from cheating by restricting access to online quizes using the IP addresses of the classroom workstations. She can do this with the software. Here is my problem - not surprisingly I'm using a DHCP server. I refuse to give over half the campus static IP addresses. I could reserve them, but they won't be in a nice seqential order like she wants. Is there another option I am missing? ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
