The following outbound ports must be opened in the firewall at the site
where the EZ Master server is located in order for EZMaster to register
with the ezReg server:

TCP 80HTTP Port,ezReg Communication
UDP 53DNS Port,ezReg Communication 


The following inbound ports MUST be opened in the firewall at the
site where EZ Master server is located in order for the remote access
points to communicate with the EZ Master server:

UDP 1234Customer port, CAPWAP port
TCP 80 (default)HTTP Port, Captive Portal, this can be defined by user


The following outbound ports MUST be opened in the firewall at the
remote site where AP/Switch is deployed in order to communicate with EZ
Master:

UDP 1234Customer port, CAPWAP port
UDP 53DNS Port,ezReg Communication 
TCP 80 (default)HTTP Port, Captive Portal, this can be defined by user


Please refer to your firewall or router's user manual for
instructions on opening ports.