Wire World Of America 1800 - Manual (Page 42)

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Computers that are assigned non-routable (private network) addresses will use Network Address
Translation (NAT) to access the Internet. Choosing a “DHCP Fixed” entry instructs the Intelligent
Gateway to always provide the same address from the DHCP pool to the specified computer.
Note: Computers on either the Public Network or Bridge Network are still behind the firewall. To allow
inbound traffic to these computers, you must modify the firewall settings specified for that computer.
Connecting to a corporate LAN via VPN
A Virtual Private Network (VPN) is a secure connection that allows remote users and telecommuters to
connect to the corporate LAN using the public Internet.
The Intelligent Gateway supports VPN clients such as Nortel, Cisco, Checkpoint, and Microsoft (IPSec
and PPTP). Ensure that your company is using VPN software that is compatible with the Intelligent
Gateway.
If you cannot transfer data while using your VPN, check with your corporate IT manager and ensure that
your corporate network is not using the 172.xxx.xxx.xxx IP scheme (the Intelligent Gateway default). You
cannot connect to a VPN server that uses the same IP scheme as your Intelligent Gateway. If your company
is using a 172.x.x.x IP scheme, change the Intelligent Gateway local network IP configuration range by
following these steps.