Perle Systems 4030370 Manuale Utente

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VPN

Exceptions allow specific hosts or any host in a network to access the IOLAN outside of a VPN 
tunnel. This is especially useful when allowing local network hosts access to the IOLAN when VPN 
tunnels have been configured for remote user security.

The following buttons are available:

Depending on the 

:

Shared Secret—Specify the text-based secret that is used to authenticate the 
IPsec tunnel (case sensitive). This applies to all VPN tunnels (IPsec and 

L2TP/IPsec).
X.509 Certificate—Specify the remote X.509 certificate validation criteria 
that must match for successful authentication (case sensitive). Note that all 

validation criteria must be configured to match the X.509 certificate. An 

asterisk (*) is valid as a wildcard.

 for more information.

or more information on the 

X.509 certificate validation criteria.

Specify the unique IPv4 address that hosts accessing the IOLAN through the 
L2TP tunnel will use.
Field Format: IPv4 address

Specify the first IPv4 address that can be assigned to incoming hosts through 

the L2TP tunnel.
Field Format: IPv4 address

Specify the end range of the IPv4 addresses that can be assigned to incoming 

hosts through the L2TP tunnel.
Field Format: IPv4 address

Specify the authentication method that will be used for the L2TP tunnel.
Data Options: CHAP, PAP, Both
Default: Both

Click the 

 button to add a VPN exception to the 

.

Highlight an 

 entry and click the 

 button to change the entry.