IPSec uses this mainly for data encryption and authentication. IKE can use certification or common keys to check the identification of the communication partner. This complex process makes the exchange of data even more secure then unen-crypted data transmission via a private rented connection. IPSec encryption helps the company to build a secure intranet. To protect the internal private network, these resources are stored in a separate part of the network, sealed by a firewall.
Speed is the next most important thing to security when it comes to data trans-mission.
It is possible to run the new VPN router, without changing the existing network infrastructure.