Hi Mark,
Is it possible that you have mulple VLANs that do not remain consistent if the
client roams to another AP? It is mapped to another VLAN and hence requests an
IP address for this new VLAN?
-Frans
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of "Mark McNeil [Staff]"
<mcn...@fordham.edu>
Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv
<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Date: Monday, 14 November 2016 at 15:08
To: "WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Odd behavior on Aruba wireless network
Atanas,
The IP addresses are on different subnets. We have the controller cycling
through vlans. We did a test with the one lease per client and it seems to have
reduced the distribution of multiple IP's per client. We will enable this week
and see what happens. Unfortunately we do not have reporting on the Infoblox to
show us the long term distribution.
Thanks for your input.
Regards
Mark
On Fri, Nov 11, 2016 at 12:32 PM, Atanas P Atanasov
<apata...@syr.edu<mailto:apata...@syr.edu>> wrote:
Your best bet would be to talk to Infoblox’ support.
Are the IPs your clients are getting on the same subnet?
Atanas
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>]
On Behalf Of Mark McNeil [Staff]
Sent: Friday, November 11, 2016 12:22 PM
To:
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Odd behavior on Aruba wireless network
Atanas,
Actually it is not enabled. If I'm reading the description correctly this
would "expire" the old lease and issue a new one to the user. This would seem
to fix my issue. Infoblox manual says this is off by default. It would seem
preferable to have this enabled by default. Any idea why its off by default?
Thanks
Mark
On Fri, Nov 11, 2016 at 11:02 AM, Atanas P Atanasov
<apata...@syr.edu<mailto:apata...@syr.edu>> wrote:
Mark,
Do you have “one lease per client” enabled?
Atanas Atanasov
Network Analyst
Syracuse University
[cid:image001.png@01D23EB3.B24A0830]
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>]
On Behalf Of Mark McNeil [Staff]
Sent: Friday, November 11, 2016 10:50 AM
To:
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
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: mcn...@fordham.edu<mailto:mcn...@fordham.edu> <http://www.fordham.edu/>
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________________________________________________________________________
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: mcn...@fordham.edu<mailto:mcn...@fordham.edu> <http://www.fordham.edu/>
http://www.fordham.edu<http://www.fordham.edu/>
_____________________________________
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________________________________________________________________________
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: mcn...@fordham.edu<mailto:mcn...@fordham.edu> <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/.
