Treba citat s porozumenim.

For PPTP:
IP Protocol=TCP, TCP Port number=1723 <- Used by PPTP control path
IP Protocol=GRE (value 47) <- Used by PPTP data path
For L2TP:
IP Protocol Type=UDP, UDP Port Number=500 <- Used by IKEv1 (IPSec control path)
IP Protocol Type=UDP, UDP Port Number=4500 <- Used by IKEv1 (IPSec control path)
IP Protocol Type=ESP (value 50) <- Used by IPSec data path
For SSTP:
IP Protocol=TCP, TCP Port number=443 <- Used by SSTP control and data path
For IKEv2:
IP Protocol Type=UDP, UDP Port Number=500 <- Used by IKEv2 (IPSec control path)
IP Protocol Type=UDP, UDP Port Number=4500 <- Used by IKEv2 (IPSec control path)
IP Protocol Type=ESP (value 50) <- Used by IPSec data path

To cislo je protocol code.