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34 RiverMaster Administrator’s Guide
Before You Begin
Chapter 3
Configuring an ANG-3000/7000
NOTE
Aurorean’s NAT Server implementation cannot be employed as a client
NAT where, for example, it operates within a cable modem/ISP topology.
Aurorean’s NAT Server implementation is server-centric.
Site-to-Site Tunnels
Aurorean site-to-site tunnels optimize service between remote offices and
their remotely linked corporate LANs. This configuration is similar to a
remote access Aurorean connection in the sense that both configurations
originate tunnels from an ANG and terminate the tunnel at a remote site. The
site-to-site tunnel configuration differs from the typical ANG model in the
sense that the remote server and tunnel must be configured with several
network values which identify the remote server to the local ANG. Figure 16
displays two site-to-site configurations of Regional Offices A and B connected
to a local ANG and both remote offices connected together, as well as a
remote access connection into Corporate Headquarters.
Figure 16 Site-to-Site Configuration
Aurorean Client
Server #1 Server #2
INTERNET
Network
Firewall
Gateway
PC
PC
Regional Office B
Corporate
PC
PC
Regional Office A
Aurorean Client
Remote access tunnel
Site-to-Site tunnel
Aurorean
Aurorean
Network
Gateway
Aurorean
Policy
Server
Aurorean
Network
Gateway
Headquarters