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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
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
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:
•
•
•
Cisco Aironet 1500 Series Outdoor Mesh Access Point Hardware Installation Guide
G-2
Lightweight Access Point VCI Strings
Type: 0xf1 (decimal 241)
Length: Number of controller IP addresses * 4
Value: List of WLC management interfaces
Table
G-1:
Vendor Class Identifier (VCI)
A i r es pace. A P1200
Ci s co A P c1100
Ci s co A P c1130
Ci s co A P c1200
Ci s co A P c1240
Ci s co A P c1300
Ci s co A P c1500
Ci s co A P. O A P1500
Ci s co A P. LA P1505
A i r es pace. A P1200
Appendix G
Configuring DHCP Option 43
1
2
2
, Ci sco A P. LA P1510
, or
2
3
OL-9977-05
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