DHCP Option 43 Generator

Access points find their controller through DHCP option 43, but every vendor encodes it differently: Cisco wants a TLV with sub-option 241, Ruckus a TLV with sub-option 3 or 6, Aruba a plain ASCII string, UniFi sub-option 1 with a single address. Pick the vendor, enter the controller addresses, and copy the result for your DHCP server.

Wireless controller vendor Controller IPv4 addresses (comma or newline separated, in priority order)

Option 43 value (hex)

Option 60 vendor class the AP sends (match on this)

DHCP server configuration Platform

Last updated on October 18, 2026

Cisco Type 7 Decoder