AVM FRITZ!Box 6320 Cable, Установка, настройка и эксплуатация

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VPN: Remote Access to the Home Network
The original packet is encrypted and authenticated before re-
packing.
•
The IP addresses of the destination and the sender in
the new IP header are the public IP addresses of the two
VPN parties in the Internet. Only the new IP header can
be read in the Internet in clear text.
•
Thanks to the encryption and authentication, the origi-
nal packet remains concealed in the inside of the tunnel.
The IP addresses of the destination and sender in the IP
header of the original packet are private IP addresses in
the local network.
The tunnel is what makes it possible to connect networks
with private IP addresses via the Internet. Moreover, the tun-
nel secures the connection.
The VPN solution used with the FRITZ!Box uses the IPSec tun-
nel protocol.
IPSec is a tunnel protocol that offers state-of-the-art encryp-
tion procedures and can be integrated seamlessly into exist-
ing IP networks. The AES encryption algorithm is used in the
FRITZ!Box VPN solution. AES is currently the most modern en-
cryption algorithm.
IP header Data
IP header Data
New
IP header
Original packet
Tunnel packet
encrypted
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