350-401 · Question #330
Which DHCP option provides the CAPWAP APs with the address of the wireless controller(s)?
The correct answer is A. 43. DHCP Option 43 is a vendor-specific option used by Cisco to provide CAPWAP APs with the IP address of the Wireless LAN Controller (WLC).
Question
Which DHCP option provides the CAPWAP APs with the address of the wireless controller(s)?
Options
- A43
- B66
- C69
- D150
How the community answered
(22 responses)- A91% (20)
- B5% (1)
- C5% (1)
Why each option
DHCP Option 43 is a vendor-specific option used by Cisco to provide CAPWAP APs with the IP address of the Wireless LAN Controller (WLC).
DHCP Option 43 is a vendor-specific option commonly used in Cisco environments to deliver the IP address of the Wireless LAN Controller (WLC) to CAPWAP-enabled Access Points, enabling them to discover and join the controller.
DHCP Option 66 is for 'Boot Server Host Name', typically used to provide the name of a TFTP server for network booting, not WLC discovery.
DHCP Option 69 is for 'SMTP Server', which is irrelevant for wireless controller discovery by APs.
DHCP Option 150 is typically used by Cisco IP Phones to discover the TFTP server for configuration files and firmware, not by CAPWAP APs for WLC discovery.
Concept tested: DHCP Options for WLC discovery
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/discovery_and_joining_a_controller.html
Topics
Community Discussion
No community discussion yet for this question.