Which connections must the administrator allow on the firewall?

An Administrator supports a group of employees that connect to the corporate office using the VIA client. An Aruba Mobility Controller (MC), behind a corporate firewall, terminates the user’s VPN sessions. The VPN sessions fail to establish because of the existing firewall rules.

Which connections must the administrator allow on the firewall? (Choose three.)
A . UDP 8202
B . UDP 4500
C . UDP 8211
D . TCP 4443
E . TCP 443
F . UDP 500

Answer: ABE