Mark, Do you have “one lease per client” enabled?
Atanas Atanasov Network Analyst Syracuse University [cid:[email protected]] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Mark McNeil [Staff] Sent: Friday, November 11, 2016 10:50 AM To: [email protected] Subject: [WIRELESS-LAN] Odd behavior on Aruba wireless network I have an implementation of Alcatel/Aruba wireless. We've been trying to manage out DHCP pool as it hits 90 precent quite often. We are seeing this strange behavior in that a single user within a short period of time is associating and disassociating and as such gets new IP address. The DHCP server is retaining the old IP as being active so does not redistribute for 30 minutes. The examples I list below show two to three IP addresses being given out from the same AP in a few minute period. We've seen IP address changes in less that 30 seconds on a regular basis. This issue seem to occur in areas of good coverage as well as in marginal areas. Lan IP Address Association time Duration Avg. Speed 172.21.34.49, 172.21.52.16 11/10/16, 4:25 PM 2 minutes 122Mps 172.21.59.221, 172.21.45.117, 172.21.52.217 11/9/16, 11:57 AM 5 minutes DHCP server is from Infoblox Any thoughts. Regards Mark -- ________________________________________________________________________ Mark McNeil Director, Network Engineering and Operations Fordham University | Fordham IT Tel: 718-817-3763 Business Office: 718-817-3750 Fax: 718-817-5775 email: [email protected]<mailto:[email protected]> <http://www.fordham.edu/> http://www.fordham.edu<http://www.fordham.edu/> _____________________________________ ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
