User's Guide
Table Of Contents
- 1 About this Guide
- 2 About the Access Point
- 3 Safety Instructions
- 4 Unpacking the AP
- 5 Ports and Connectors on the AP
- 6 Preparing the AP for Installation
- 7 Installation Overview
- 8 Performing a Pre-Installation Configuration
- 9 Mounting and Grounding the Access Point
- 10 Powering the Access Point
- 11 Configuring and Deploying the Access Point
- 12 Checking the Access Point LED
- 13 Miscellaneous Usage and Configuration Guidelines
- 14 Related Documentation
- 15 Declarations of Conformity and Regulatory Information
- Manufacturers Federal Communication Commission Declaration of Conformity Statement
- VCCI Statement for Japan
- Guidelines for Operating Cisco Aironet Access Points in Japan
- Statement 371—Power Cable and AC Adapter
- Industry Canada
- Canadian Compliance Statement
- European Community, Switzerland, Norway, Iceland, and Liechtenstein
- Declaration of Conformity with regard to the R&TTE Directive 1999/5/EC & Medical Directive 93/42/EEC
- Declaration of Conformity for RF Exposure
- Generic Discussion on RF Exposure
- This Device Meets International Guidelines for Exposure to Radio Waves
- This Device Meets FCC Guidelines for Exposure to Radio Waves
- This Device Meets the Industry Canada Guidelines for Exposure to Radio Waves
- Cet appareil est conforme aux directives internationales en matière d'exposition aux fréquences radioélectriques
- Additional Information on RF Exposure
- Administrative Rules for Cisco Aironet Access Points in Taiwan
- Operation of Cisco Aironet Access Points in Brazil
- Declaration of Conformity Statements
- 16 Obtaining Documentation and Submitting a Service Request
22
Configuring DHCP Option 43
You can use DHCP Option 43 to provide a list of controller IP addresses to the access points, enabling
them to find and join a controller.
The following is 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 product documentation for configuring DHCP Option 43. In Option 43, you should use the
IP address of the controller management interface.
The 1815I series access point uses 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 43). The VCI string for the 1815I series access point is:
Cisco AP c1815I
The format of the TLV block is listed below:
• Type: 0xf1 (decimal 241)
• Length: Number of controller IP addresses * 4
• Value: List of WLC management interfaces
To configure DHCP Option 43 in the embedded Cisco IOS DHCP server, follow these steps:
Step 1 Enter configuration mode at the Cisco IOS CLI.
Step 2 Create the DHCP pool, including the necessary parameters such as default router and name
server. A DHCP scope example is as follows:
ip dhcp pool <pool name>
network <IP Network> <Netmask>
default-router <Default router>
dns-server <DNS Server>
Where:
<pool name> is the name of the DHCP pool, such as AP1815i
<IP Network> is the network IP address where the controller resides, such as
10.0.15.1
<Netmask> is the subnet mask, such as 255.255.255.0
<Default router> is the IP address of the default router, such as 10.0.0.1
<DNS Server> is the IP address of the DNS server, such as 10.0.10.2
Step 3 Add the option 43 line using the following syntax: