CWNP CWDP-304 Question Answer
What is the purpose of DHCP Option 43, and how is it used with WLANs?
It provides clients with a temporary IP address on a restricted VLAN until 802.1X authentication is completed. Then the client receives its
long-term IP address.
It provides IP address bindings for specific network nodes that require long-term IP address assignments. WLAN controllers are configured
to use Option 43 to receive long-term IP address leases that are centrally managed with DHCP.
It supports vendor-specific IP address attributes for node discovery purposes. APs use Option 43 with vendor class identifiers to obtain the
IP address of a centralized WLAN controller.
It integrates a DHCP server with AAA servers and user databases to dynamically assign IP addresses to client devices. During 802.1X, the
AAA server uses
TESTED 11 Jul 2025
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