350-401 · Question #678
Which option works with a DHCP server to return at least one WLAN management interface IP address during the discovery phase and is dependent upon the VCI of the AP?
The correct answer is D. Option 43. DHCP Option 43 is a vendor-specific information option used to return WLAN management interface IP addresses during the discovery phase, with its content often depending on the client's Vendor Class Identifier (VCI).
Question
Which option works with a DHCP server to return at least one WLAN management interface IP address during the discovery phase and is dependent upon the VCI of the AP?
Options
- AOption 42
- BOption 15
- COption 125
- DOption 43
How the community answered
(25 responses)- A4% (1)
- C8% (2)
- D88% (22)
Why each option
DHCP Option 43 is a vendor-specific information option used to return WLAN management interface IP addresses during the discovery phase, with its content often depending on the client's Vendor Class Identifier (VCI).
DHCP Option 42 specifies Network Time Protocol (NTP) servers, which is not used for WLAN management interface IP discovery.
DHCP Option 15 is used to specify the DNS domain name, not for discovering WLAN management interface IP addresses.
DHCP Option 125 is a vendor-specific encapsulating option, but Option 43 is the more standard and commonly used option specifically for WLC discovery.
DHCP Option 43 is the vendor-specific information option utilized by DHCP servers to deliver configuration parameters, such as the IP address of a WLAN management interface, to a client during the discovery phase, and its content can be dynamically determined based on the client's VCI.
Concept tested: DHCP Option 43 for WLC discovery
Source: https://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/69460-wlc-aaa.html
Topics
Community Discussion
No community discussion yet for this question.