Chad.... Who is your DHCP server ? Aruba ? I was wondering how you push them to a diff scope ?
Ken Connell Intermediate Network Engineer Computer & Communication Services Ryerson University 350 Victoria St RM AB50 Toronto, Ont M5B 2K3 416-979-5000 x6709 ----- Original Message ----- From: "Street, Chad A" <cstr...@emory.edu> Date: Wednesday, March 7, 2012 1:24 pm Subject: Re: [WIRELESS-LAN] School blocks Wi-Fi access to smartphones to address IP usage issues To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > You do not have to pay extra for the device type identification; however, > you do need to be on the 6.x code levels. With the device fingerprinting, > you can easily push all the smartphones to a unique dhcp scope with very > low lease times. > > Chad Street - Emory > > > On 3/7/12 12:57 PM, "Pham, Loc" <loc.p...@ucsfmedctr.org> wrote: > > > Marcelo, > > The Aruba feature that allow fingerprint on the devices, do you > have to > >pay extra for it to be functional ? > > > > I hope our Cisco BU is listening ;-))) > > > >Regards, > > > >Loc Pham, CCIE > >office 415-353-4492 > >IT Enterprise Security & Services > >UCSF Medical Center > > > >-----Original Message----- > >From: The EDUCAUSE Wireless Issues Constituent Group Listserv > >[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Marcelo Lew > >Sent: Thursday, February 02, 2012 10:17 AM > >To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > >Subject: Re: [WIRELESS-LAN] School blocks Wi-Fi access to > smartphones to > >address IP usage issues > > > >Smartphones were killing us this quarter. While we only have 3500-3800 > >concurrent daily users, we have about 6500 devices connected. Most > of > >these extra 3000 devices were smartphones that come online for less > than > >a minute, and then go idle again. With our 30m DHCP renew times, we > were > >exhausting our 5500 public IP pool for our main SSID. Instead of moving > >to private space (which most likely we will in the near future), we > added > >6 more class c subnets. We are now NOT running out of IPs, at least > for > >a short while. We also thought of making the DHCP lease times very > short > >(like 5 minutes), but our DHCP admin is uncertain what issues might > arise > >from this. Another option we are thinking about, the new Aruba code > >allows fingerprinting devices before they are placed on a subnet, so > we > >could put all smartphones in specific subnets with short lease > times, and > >leave the rest of the devices (pads, netbook, notebooks, etc) on regular > >subnets with average DHCP lease times. > > > >Marcelo Lew > >Wireless Enterprise Administrator > >University Technology Services > >University of Denver > >Desk: (303) 871-6523 > >Cell: (303) 669-4217 > >Fax: (303) 871-5900 > >Email: m...@du.edu > > > > > > > >-----Original Message----- > >From: The EDUCAUSE Wireless Issues Constituent Group Listserv > >[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jonn Martell > >Sent: Thursday, February 02, 2012 9:22 AM > >To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > >Subject: Re: [WIRELESS-LAN] School blocks Wi-Fi access to > smartphones to > >address IP usage issues > > > >I agree, the school newspaper only shows it from a user's perspective. > > "The smartphones are shutting down the network" while it's more "the > >network has run out of public address space and the use of private > >address space on this network is _______ " > > > >We all know the major flaw in using private address space is logging > and > >tracking but there are solutions to this. Shutting down access (by > MAC > >block ID?) would not be one of mine. > > > >Jonn Martell, speaking as a network instructor and Director but not > on > >behalf of the Universities I work at.... > > > >On Thu, Feb 2, 2012 at 8:00 AM, Frank Bulk <frnk...@iname.com> wrote: > >> http://www.vsuspectator.com/2012/02/02/outage-linked-to-usage/ > >> > >> Looks like VSU had to make some hard choices and is blocking Wi-Fi > >> access by smartphones. Not sure why they couldn't add another RFC > >> 1918 block, but I'm sure there's more going on than the school paper > >>shared. > >> > >> Frank > >> > >> ********** > >> 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/. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >. > >********** > >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/. > > > ________________________________ > > This e-mail message (including any attachments) is for the sole use of > the intended recipient(s) and may contain confidential and privileged > information. If the reader of this message is not the intended > recipient, you are hereby notified that any dissemination, distribution > or copying of this message (including any attachments) is strictly > prohibited. > > If you have received this message in error, please contact > the sender by reply e-mail message and destroy all copies of the > original message (including attachments). > > ********** > 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/.
