Configuring IPSec VPN
Typical installations
Included in the typical installations, are examples of installing VPN hub and spokes, full or
partial mesh, and a hub-and-spoke with VPN for data and VoIP control backup.
Simple VPN topology – VPN hub and spokes
The simple VPN topology consists of several VPN spokes (branch offices) connected via the
Internet to the VPN hub (Main Office).
In this topology:
The Broadband Internet connection uses cable or DSL modem, with a static public IP
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address
There is a VPN tunnel from each spoke to the VPN hub over the Internet
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Only VPN traffic is allowed via the Internet connection
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Figure 45: Simple VPN topology: VPN hub and spokes
530 Administration for the Avaya G450 Media Gateway