Multiple DHCP scopes on WLC 5508 (not showing leases?)

[Eric Daoust]

I have 2 DHCP scopes set up on a wlc 5508, one for the AP's and another for a wlan, the leases for the AP's scope show up, but the one that the clients on the WLAN are on do not show up in the "show leases" is that a bug? normal? 

[Saurav Lodh]

Have you followed the below config. ?

http://www.cisco.com/c/en/us/td/docs/wireless/controller/7-4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/b_cg74_CONSOLIDATED_chapter_01001010.html

[sajid gul]

the mention document does not define DHCP Scopes for Each WLAN , kindly give me the guidance through which i can configure DHCP scope of particular WLAN 

for Example 

WLAN xvy belongs dhcp scope 10.x.x.x

WLAN abc belongs dhcp scope 20.x.x.x

[George Stefanick]

On a WLC you have 2 ways to get DHCP to devices. 

1 Proxy -- Default the WLC will proxy on behalf of the client for a DHCP address. Under controller interfaces it will ask for a DHCP address. This is the address the WLC will reach to for a IP Address. You then tie the WLAN to this controller interface. This is the most commonly deployed way of getting DHCP to a client over a WLAN.

2 Proxy Disable -- You could disable proxy when doing so then the wired side SVI interface IP HELPERS will request the IP address. Again you tie the WLAN to this controller interface. You also have to disable the DHCP proxy. 

HTH

[abwahid]

Hi,

have you mention the lease time, In the Lease Time text box, while configuring the DHCP server.

[gohussai]

This is not a bug ,you have to reconfig and test this on gui as well as console.

[Moin Ilyas]

Customers using Cisco Unified Wireless solutions have been reporting issues with the DHCP support provided on the Wireless LAN Controller (WLC). Some of these issues are software bugs or debugability problems. Others are due to lack of proper understanding on the DHCP implementation.

This document describes the different DHCP operations on the wireless controller, which provides consistent and accurate information to customers in an effort to reduce the related customer issues and TAC cases.

Please refer to the following link: http://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/110865-dhcp-wlc.html