Q: Does Aruba Mobility Access Switch and Controller support multiple DHCP option 150?
A: No, DHCP option 150 contains the IP address of the TFTP server. This popularly used by Cisco VoIP phones to download the configuration from a centralized server or call manager.
The DHCP server will return with a list of IP address in Option 150 which can be used by the phones.
Currently Aruba Controller and MAS support only one DHCP option with below configuration.
(Controller) # configure terminal
(Master-Controller) (config) #ip dhcp pool vlan20
(Master-Controller) (config-dhcp)#option 150 ip 10.192.5.2
# vlan20
subnet 20.20.20.0 netmask 255.255.255.0 {
option vendor-class-identifier "ArubaAP";
option vendor-encapsulated-options "10.17.170.227";
option domain-name-servers 8.8.8.8, 4.2.2.2;
option routers 20.20.20.1;
option usr-opt-150-3 10.192.5.2;
range 20.20.20.2 20.20.20.254;
authoritative;
