300-425 Question 288
Single answerA network administrator is configuring a Cisco Wireless LAN Controller (WLC) to manage a large number of access points (APs) in a campus environment. The administrator needs to ensure that the WLC can dynamically allocate IP addresses to the APs but also wants to minimize the risk of IP address conflicts. Which feature should the administrator enable on the WLC to meet these requirements?
- A
DHCP Server
- B
DHCP Option 43
- C
AP Authorization List
- D
Internal DHCP Scope
Show answer and explanation
Correct answer: D
Explanation
The correct answer is 'Internal DHCP Scope' because this feature allows the WLC to act as a DHCP server for access points, dynamically assigning IP addresses from an internally managed pool. This minimizes the risk of IP conflicts since the WLC directly manages the scope. While other options such as Option 43 are crucial in AP-WLC communication, they do not address the specific requirement of dynamic IP allocation and conflict prevention.
- A. Incorrect.
DHCP Server is not a feature typically enabled on a Cisco WLC for IP address management as it is generally handled by a dedicated DHCP server in the network.
- B. Incorrect.
DHCP Option 43 is used to provide the APs with the IP address of the WLC during discovery, but it does not manage IP allocation or prevent IP conflicts.
- C. Incorrect.
AP Authorization List is used for controlling which APs are allowed to join the WLC but does not address the requirement for IP address allocation.
- D. Correct.
Internal DHCP Scope on the WLC allows the controller to act as a local DHCP server for APs, dynamically allocating IP addresses and reducing the risk of conflicts by managing the scope internally.