Here on the NAS-Initialized the L2TP VPN, correct statement are: (Choose three)
Which of the following security protocols IPSec NAT traversal (middle ipsec vpn tunnels circumstances nat device)?
Port-mapping function is used to publish certain port internal server to the external network.
GRE configuration, the Tunnel interface mode which of the following items must be configured? (Choose three)
SSL and IPSec security protocols, encryption and authentication. However, SSL protocol only on the application of both data communications transmission is encrypted, but not all of the data from one host to another is encrypted (such as TCP / IP and application layer protocol).