Overview - Cisco AIR-AP1120B-A-K9 - Aironet 1100 Series Access Point Hardware Installation Manual

Appendix F Configuring DHCP Option 43 for Lightweight Access Points

Overview

This section contains a DHCP Option 43 configuration example on the embedded Cisco IOS DHCP
server for use with Cisco Aironet lightweight access points. For instructions on configuring DHCP
Option 43 on Microsoft, Sun Solaris, Linux, and Lucent QIP DHCP servers, consult the document at this
URL:
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00808714f
e.shtml
For other DHCP server implementations, consult the DHCP server documentation for instructions on
configuring DHCP Option 43. In Option 43, you should use the IP address of the controller management
interface.
DHCP Option 43 is limited to one access point type per DHCP pool. You must configure a separate
Note
DHCP pool for each access point type.
Cisco Aironet 1000 and 1500 series access points use a comma-separated string format for DHCP Option
43. Other Cisco Aironet lightweight access points use the type-length-value (TLV) format for DHCP
Option 43. DHCP servers must be programmed to return the option based on the access point's DHCP
Vendor Class Identifier (VCI) string (DHCP Option 60). The VCI strings for Cisco access points capable
of operating in lightweight mode are listed in
Table F-1
Lightweight Access Point
Cisco Aironet 1000 series
Cisco Aironet 1100 series
Cisco Aironet 1130 series
Cisco Aironet 1200 series
Cisco Aironet 1240 series
Cisco Aironet 1300 series
Cisco Aironet 1500 series
The format of the TLV block for 1100, 1130, 1200, 1240, 1250, and 1300 series lightweight access points
is listed below:
•
•
•
OL-4309-07
Lightweight Access Point VCI Strings
Type: 0xf1 (decimal 241)
Length: Number of controller IP addresses * 4
Value: List of WLC management interfaces
Table F-1:
Vendor Class Identifier (VCI)
Airespace.AP1200
Cisco AP c1100
Cisco AP c1130
Cisco AP c1200
Cisco AP c1240
Cisco AP c1300
Cisco AP.LAP1510?
Cisco Aironet 1100 Series Access Point Hardware Installation Guide
Overview
F-2