Home » Microsoft » 70-688 » Which VPN tunneling protocol should you use?
You support tablets that run Windows 8 Pro. You are designing a remote access server (RAS) that will be placed behind a firewall. The firewall will accept incoming TCP connections to ports 80 and 443 only.
You want to connect to the RAS server from a tablet.
You need to create a virtual private network (VPN) connection to the RAS server. Which VPN tunneling protocol should you use?
A. IPSec/L2TP
B. SSTP
C. PPTP
D. IPSec/IKEv2
Correct Answer: B
Explanation/Reference:
Was a bit difficult to find information on Technet regarding SSTP but, the below explains it well and why it would be used here.
Secure Socket Tunneling Protocol
Reference: http://en.wikipedia.org/wiki/Secure_Socket_Tunneling_Protocol
http://technet.microsoft.com/en-us/library/cc783910%28v=WS.10%29.aspx
Explanation:
Secure Socket Tunneling Protocol (SSTP) is a form of VPN tunnel that provides a mechanism to transport PPP or L2TP traffic through an SSL 3.0 channel. SSL provides transport-level security with key-negotiation, encryption and traffic integrity checking. The use of SSL over TCP port 443 allows SSTP to pass through virtually all firewalls and proxy servers.
