Digi TX54, User Manual

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Virtual Private Networks (VPN) L2TP
TX54 User Guide 512
If Automatic , CHAP , or PAP is selected, enter the Username and Password required to
authenticate.
The default is None .
h. (Optional) For Authentication method , select the authentication method, one of:
n
None : No authentication is required.
n
Automatic : The device will attempt to connect using CHAP first, and then PAP.
n
CHAP : Uses the Challenge Handshake Authentication Profile (CHAP) to
authenticate.
n
PAP : Uses the Password Authentication Profile (PAP) to authenticate.
n
If Automatic , CHAP , or PAP is selected, enter the Username and Password
required to authenticate.
n
The default is None .
i. (Optional) Type the Metric for the tunnel, if other than the default of 1 .
j. Select a firewall Zone for the tunnel. This is used by packet filtering rules and access
control lists to restrict network traffic on the tunnel.
k. (Optional): Custom PPP configuration:
i. Enable custom PPP configuration.
ii. Enable Override if the custom configuration should override the default configuration
and only use the custom options.
iii. For Configuration file , paste or type the configuration data in the format of a pppd
options file.
8. Click Apply to save the configuration and apply the change.

Command line
1. Log into the TX54 command line as a user with full Admin access rights.
Depending on your device configuration, you may be presented with an Access selection
menu . Type admin to access the Admin CLI.
2. At the command line, type config to enter configuration mode:
> config
(config)>
3. (Optional) Set the UDP listening port that L2TP servers will listen on:
(config)> vpn l2tp port value
(config)>
where value is an integer between 1 and 65535 . The default is 1701 .
4. Set the access control for L2TP tunnels: