CHAPTER 4
Configuring DHCP for WLANs
•
Finding Feature Information, page 47
•
Prerequisites for Configuring DHCP for WLANs, page 47
•
Restrictions for Configuring DHCP for WLANs, page 48
•
Information About the Dynamic Host Configuration Protocol, page 48
•
How to Configure DHCP for WLANs, page 52
•
Additional References, page 56
•
Feature Information for DHCP for WLANs, page 57
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release. To find information
about the features documented in this module, and to see a list of the releases in which each feature is supported,
see the Feature Information Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support.
To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not
required.
Prerequisites for Configuring DHCP for WLANs
•
To be able to use the DHCP option 82, you must configure DHCP on Cisco IOS software. By default,
DHCP option 82 is enabled for all clients. You can control the wireless client behavior using the WLAN
suboptions.
•
It is recommended to enable dhcp snooping on the Switches irrespective of the DHCP address requirement
being checked or unchecked on the WLAN. This avoids any client connectivity issues when DHCP
snopping is not turned on.
This example shows how to enable DHCP snooping on the Switches:
Switch(config)# ip dhcp snooping 136, 139
Switch(config)# ip dhcp snooping
WLAN Configuration Guide, Cisco IOS XE Release 3E (Catalyst 3650 Switches)
OL-32353-01 47
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