Netopia R2020 Manuale Utente

initiating a tunnel connection.

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You can specify a Receive Host Name which is used with the Receive Secret for authenticating a remote 
PPTP client.

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You must specify a Receive Secret, used for authenticating the remote PPTP client.

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You can specify that this router will Initiate Connections (acting as a PAC) or only answer them (acting as a 
PNS).

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Tunnels are normally initiated On Demand; however, you can disable this feature. When disabled, the 
tunnel must be manually established via the call management screens or may be scheduled using the 
scheduled connections feature. See “Scheduled Connections” in the 

User’s Reference Guide.

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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.

An alternate way to force a tunnel to stay up is to define a forced up scheduled connection for the profile. 
For more information, see 

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Return to the Connection Profile screen by pressing Escape.

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Select IP Profile Parameters and press Return.

The IP Profile Parameters screen appears.

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Enter the Remote IP Address and Remote IP Mask for the host to which you want to tunnel.

Note: A peculiarity associated with VPNs is that when a PAC has NAT applied to a Connection Profile set for 
PPTP data link encapsulation, the PNS and devices behind it, cannot Ping the PAC’s tunnel end-point IP 
address. This is because ICMP packets have no por t association, and thus will be discarded rather than being 
processed by NAT.

                            IP Profile Parameters

         Address Translation Enabled:       Yes

         NAT Map List...                    Easy-PAT
         NAT Server List...                 Easy-Servers

         Local WAN IP Address:              0.0.0.0

         Remote IP Address:                 173.167.8.10
         Remote IP Mask:                    255.255.0.0

         Filter Set...
         Remove Filter Set

         Receive RIP:                       Both

Enter a subnet mask in decimal and dot form (xxx.xxx.xxx.xxx).