What's your lease duration? I entered the reservations on Friday afternoon[1]. On Monday morning, students came in, and noticed nothing. Lease duration is probably more important for your environment, because your period of inactivity may be little or none. Reducing the lease duration to a small enough window to make the change transparent will be very useful.
I had previously recorded the MAC addresses, deleted the existing leases I needed to move and then created the reservations. Took about 40 minutes for the 200 lab computers to do the entry. Going along the lines of what Brian says, you can possibly implement this, but you need a window of downtime which may not be acceptable. This may need to be delayed for a future project... On Mon, Jan 10, 2011 at 10:41 AM, Vicky Spelshaus <[email protected] > wrote: > 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]> 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]* >> *www.eaglemds.com >> ------------------------------ >> >> *From:* Vicky Spelshaus [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? >> >> >> >> >> >> -- Organization and good planning are just crutches for people that can't >> handle stress and caffeine. - unknown >> >> ~ 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 >> >> >> ------------------------------ >> Any medical information contained in this electronic message is >> CONFIDENTIAL and privileged. It is unlawful for unauthorized persons to >> view, copy, disclose, or disseminate CONFIDENTIAL information. This >> electronic message may contain information that is confidential and/or >> legally privileged. It is intended only for the use of the individual(s) >> and/or entity named as recipients in the message. 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Do not deliver, distribute or copy this >> message, and do not disclose its contents or take any action in reliance on >> the information that it contains. >> >> ~ 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 >> >> > > > -- > Organization and good planning are just crutches for people that can't > handle stress and caffeine. - unknown > > ~ 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 > ~ 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
