DHCP Option 43 is limited to one AP type per DHCP pool. You must configure a separate DHCP pool for
each AP type.
Note
The Cisco Catalyst Wireless 9163E Series Outdoor AP uses the type-length-value (TLV) format for DHCP
Option 43. DHCP servers must be programmed to return the option based on the AP DHCP Vendor Class
Identifier (VCI) string (DHCP Option 43). The VCI string for the AP:
Cisco AP C9163E
The format of the TLV block is listed below:
• Type—0xf1 (decimal 241)
• Length—Number of controller IP addresses * 4
• Value—IP addresses of the controller management interfaces are listed sequentially in hexadecimal
format.
Procedure
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:
Example:
network <IP Network> <Netmask>
default-router <Default router>
dns-server <DNS Server>
Where:
Example:
<pool name> is the name of the DHCP pool, such as AP9163E
<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:
Example:
option 43 hex <hex string>
The hex string is assembled by concatenating the TLV values shown below:
Type + Length + Value
For example, suppose that there are two controllers with management interface IP addresses, 10.126.126.2
and 10.127.127.2. The type is f1(hex). The length is 2 * 4 = 8 = 08 (hex). The IP addresses translate to 0a7e7e02
Cisco Catalyst Wireless 9163E Access Point Hardware Installation and Deployment Guide
56
Troubleshooting
Configuring DHCP Option 43
To Next Page
Loading...
