Guest WLAN and IP Address Exhaustion

[steve.pomfret]

Does anybody know of a way to stop a DHCP Server from doling out IP addresses (and subsequently exhausting the DHCP Scope) prior to performing L3 Web Auth to the WLC?

The problem arises when Students come into School with their iPhones and such like with the WLAN turned on which exhausts the current Guest WLAN DHCP Scope.  Subsequently when a valid Guest User comes along they are unable to obtain an IP.

Many Thanks

[andre.ortega]

You can disable SSID broadcast.

Whitout see "network" the devices not request IP.

[steve.pomfret]

Sorry, my mistake.

Forgot to mention, disabling the broadcast of the Guest WLAN SSID is NOT an option.....

Thanks

[George Stefanick]

You can lessen the DHCP lease. I feel your pain on this one too. We moved our lease time to 3:00 hours.

[Surendra BG]

Hi,

This is the challenge that we have with the Guest wireless access!! However, we can use WPA/WPA2-PSK along with the WEB-AUTH, SO that thew clients who provide the right PSK will only be able to grab the IP..

Regards

Surendra