Chapter 1 – Product Description, Features, and Overview
Multi-Tech Systems, Inc. RouteFinderVPN RF760/660/600VPN User Guide (PN S000323D) 19
To satisfy today’s business world needs, the IT infrastructure must offer real-time communication and co-operate
closely with business partners, consultants, and branches. Increasingly, the demand for real-time capability is
leading to the creation of extranets that operate either:
• via dedicated lines, or
• unencrypted lines via the Internet
Each of these methods has advantages and disadvantages, as there is a conflict between the resulting costs and
the security requirements.
Virtual Private Networking (VPN) establishes secure (i.e., encrypted) connections via the Internet, an important
function especially if your organization operates at several locations that have Internet connections. These secure
connections use the IPSec standard derived from the IP protocol IPv6.
ISO Layers and TCP/IP
Once set up, this encrypted connection is used automatically (i.e., without extra configurations or passwords at the client
systems) regardless of the type of data that is to be transferred. This protects the content during the transport. At the
other end of the connection, the transferred data is transparently decoded and is available for the recipient in its original
form.
The RouteFinder VPN uses a hybrid of the above listed basic forms of firewalls and combines the advantages of both
variations: the stateful inspection packet. Stateful inspection packet filter functionality offers platform-independent
flexibility, and the ability to define, enable or disable all necessary services. Existing proxies make the RouteFinder an
application gateway that secures vital client system services, such as HTTP, Mail, and DNS by using a proxy. The
ROUTEFINDER also enables generic circuit-level proxy via SOCKS.
VPN, Source NAT, Destination NAT, masquerading, and the ability to define static routes make the dedicated firewall an
efficient distribution and checkpoint in your network.