Appendix G Configuring DHCP Option 43

Overview

Overview

This section contains a DHCP Option 43 configuration example on a Windows 2003 Enterprise DHCP server for use with Cisco Aironet lightweight access points. For other DHCP server implementations, consult DHCP server product documentation for configuring DHCP Option 43. In Option 43, you should use the IP address of the controller management interface.

Note DHCP Option 43 is limited to one access point type per DHCP pool. You must configure a separate 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 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 G-1:

Table G-1

Lightweight Access Point VCI Strings

 

 

 

Access Point

 

Vendor Class Identifier (VCI)

 

 

Cisco Aironet 1000 series

A irespace.A P1200

 

 

Cisco Aironet 1100 series

Cisco AP c1100

 

 

Cisco Aironet 1130 series

Cisco AP c1130

 

 

Cisco Aironet 1200 series

Cisco AP c1200

 

 

Cisco Aironet 1240 series

Cisco AP c1240

 

 

Cisco Aironet 1300 series

Cisco AP c1300

 

 

Cisco Aironet 1500 series

Cisco AP c15001

 

 

 

 

 

Cisco AP.OAP15002,Cisco AP.LAP15102,or

 

 

Cisco AP.LAP15052

 

 

 

 

 

Airespace.AP12003

 

 

 

1.For controller release 4.1 or later.

2.For controller release 4.0, the VCI depends on the model.

3.For controller release 3.2

The format of the TLV block for 1100, 1130, 1200, 1240, 1250, and 1300 series access points is listed below:

•Type: 0xf1 (decimal 241)

•Length: Number of controller IP addresses * 4

•Value: List of WLC management interfaces

Cisco Aironet 1500 Series Outdoor Mesh Access Point Hardware Installation Guide

 

G-2

OL-9977-05

 

 

 

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Cisco Systems OL-9977-05 manual Overview, Access Point Vendor Class Identifier VCI
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OL-9977-05 specifications

Cisco Systems OL-9977-05 is a pivotal reference guide that caters to networking professionals seeking an in-depth understanding of Cisco's infrastructure and certification processes. It encapsulates the essence of modern networking technologies, emphasizing the importance of robust, scalable, and secure network architectures.

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In conclusion, Cisco Systems OL-9977-05 serves as an essential resource for networking professionals. Its focus on advanced routing and switching, robust security protocols, cutting-edge technologies like SDN and NFV, and collaboration tools provides a holistic view of Cisco's network solutions. This documentation not only supports Cisco certification preparation but also serves as a valuable reference for real-world networking scenarios, ensuring that professionals are well-equipped to tackle the challenges of contemporary network management.
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