Example:
<pool name> is the name of the DHCP pool, such as AP9124AX
<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 + 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
and 0a7f7f02. Assembling the string then yields f1080a7e7e020a7f7f02. The resulting Cisco IOS command
added to the DHCP scope is
option 43 hex f1080a7e7e020a7f7f02
.
Cisco Catalyst 9124AX Series Outdoor Access Point Hardware Installation Guide
87
Troubleshooting
Configuring DHCP Option 43