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You must specify a Key String of up to (and including) 20 characters when DES is selected. When
encryption is None, this field is invisible.
You can specify that this router will Initiate Connections, acting as a foreign agent (Yes), or only answer
them, acting as a home agent (No).
Tunnels are normally initiated On Demand; however, you can disable this feature. When disabled, the
tunnel must be manually established through the call management screens.
You can specify the Idle Timeout, an inactivity timer, whose expiration will terminate the tunnel. A value of
zero disables the timer. Because tunnels are subject to abrupt termination when the underlying datalink is
torn down, use of the Idle Timeout is strongly encouraged.
Return to the Connection Profile screen by pressing Escape.
Select IP Profile Parameters and press Return. The IP Profile Parameters screen appears.
Address Translation Enabled:
NAT Map List...
NAT Server List...
Local WAN IP Address:
Remote IP Address:
Remote IP Mask:
Filter Set...
Remove Filter Set
Receive RIP:
Enter a subnet mask in decimal and dot form (xxx.xxx.xxx.xxx).
Enter the Remote IP Address and Remote IP Mask for the host to which you want to tunnel.
Allowing VPNs through a Firewall
An administrator interested in securing a network will usually combine the use of VPNs with the use of a firewall
or some similar mechanism. This is because a VPN is not a complete security solution, but rather a component
of overall security. Using a VPN will add security to transactions carried over a public network, but a VPN alone
will not prevent a public network from infiltrating a private network. Therefore, you should combine use of a
firewall with VPNs, where the firewall will secure the private network from infiltration from a public network, and
the VPN will secure the transactions that must cross the public network.
IP Profile Parameters
Yes
Easy-PAT
Easy-Servers
0.0.0.0
173.167.8.10
255.255.0.0
Both
Virtual Private Networks (VPNs) 11-21
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