Garret, Wireless networks tend to be used in bursts. Most of the time they are underutilized. However, we try to build them for worst case scenario situation. Sounds to me like adding another /24 might be your best bet.
Also might depend on how users connect. Can anyone come in and connect? We ran and continue to run into issues with this because of the iPhone and/or devices that always try to connect to a nearby network so long as it is open. Or do your users have to authenticate? If the latter, then there is nothing you can do but expand the pool. Otherwise you might have to get creative and force users to auth before they connect. Thanks. Jorge Bodden From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Garrett Harmon Sent: Wednesday, September 30, 2009 2:09 PM To: [email protected] Subject: [WIRELESS-LAN] wireless DHCP lease time We're running into some issues at the ramp up of a quarter with our DHCP lease time attempting to utilize the /24's we currently pool for our main essid. We moved from 1hr. to 30 minutes, but are still running out of leases occasionally. For instance, we have 160 users in a /24, but due to the transient nature of wireless/classes leases that are used for a brief moment the cycle isn't quite efficient enough. What is everyone else using for wireless DHCP lease times? I know I can just add another /24 to the pool, but the networks are not being utilized enough. We want to try 15 minutes but are wondering if we will start to run into issues related with that? Your input is greatly appreciated!! Garrett Harmon Network Engineer Office of Information Technology The Ohio State University 614.292.2122 (o) 614.747.5539 (c) ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ________________________________ This electronic message is intended to be for the use only of the named recipient, and may contain information that is confidential or privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of the contents of this message is strictly prohibited. If you have received this message in error or are not the named recipient, please notify us immediately by contacting the sender at the electronic mail address noted above, and delete and destroy all copies of this message. Thank you. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
