As we have learned in the previous sections, a tunnel is a way of shipping a foreign protocol across a network that will not support it directly. Let's take a look at the different tunneling protocols and their characteristics to see how this is done.
Point-to-Point Tunneling Protocol is also known as PPTP. This was created by a consortium including Microsoft and other companies. PPTP is a fast protocol that, besides Windows, is also available to Linux and Mac users.
While PPTP does not have an inbuilt capability to provide traffic encryption, it relies on the Point-to-Point Protocol (PPP) to provide security measures during transmission.
PPTP allows traffic with different protocols ...