How do I disable master discovery via DHCP from Aruba internal DHCP server?

Aruba Employee
Aruba Employee

Product and Software: This article applies to all Aruba controllers and ArubaOS 3.4 or later.


Even after disabling the ADP on the controller, AP still can find the master.


DHCP can be enabled on the controller, and by default, option 43 is enabled on the Aruba controller with all the vendor-specific information. Therefore, APs can find the master from the IP address they got from the DHCP option 43.


In the latest ArubaOS 3.4 code, you can disable option 43 for DHCP scopes.


(Aruba200) #configure t

Enter Configuration commands, one per line. End with CNTL/Z

(Aruba200) (config) #ip dhcp pool test

(Aruba200) (config-dhcp)#?

default-router Configure DHCP default router

dns-server Configure DHCP DNS server

domain-name Configure DHCP Domain Name

lease Configure DHCP lease time

netbios-name-server Configure DHCP NETBIOS server

network Configure DHCP network number

no Delete Command

option Configure client specific options

vendor-class-identifi.. Configure to send or suppress ArubaAP vendor ID to


(Aruba200) (config-dhcp)#no vendor-class-identifier

(Aruba200) (config-dhcp)#

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Last update:
‎07-02-2014 06:32 PM
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