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Virtual Private Networks (VPN)
ii. Set the zone:
(config vpn l2tp lns lns_server)> zone zone
(config vpn l2tp lns lns_server)>
h. (Optional): Custom PPP configuration:
i. Enable custom PPP configuration:
(config vpn l2tp lac lns lns_server)> custom enable true
(config vpn l2tp lns lns_server)>
ii. Enable overriding, if the custom configuration should override the default
configuration and only use the custom options:
(config vpn l2tp lns lns_server)> custom override true
(config vpn l2tp lns lns_server)>
iii. Paste or type the configuration data in the format of a pppd options file:
(config vpn l2tp lns lns_server)> custom config_file data
(config vpn l2tp lns lns_server)>
7. Save the configuration and apply the change:
(config)> save
Configuration saved.
>
8. Type exit to exit the Admin CLI.
Depending on your device configuration, you may be presented with an Access selection
menu. Type quit to disconnect from the device.
L2TP with IPsec
L2TP is commonly used in conjunction with IPsec in transport mode (to provide security).
Your Connect IT 4 supoorts L2TP with IPsec by configuring a transport-mode IPsec tunnel between
the two endpoints, and then an L2TP tunnel with its LNS and LAC configured the same as the IPsec
tunnel's endpoints. See
Note
The Connect IT 4 does not currently support the configuration of IPsec protocol/port traffic
selectors. This means that you cannot restrict traffic on the IPsec tunnel to L2TP traffic (typically UDP
port 1701).
While multiple L2TP clients are supported on the Connect IT 4 by configuring a separate LNS for each
client, multiple clients behind a Network Address Translation (NAT) device are not supported, because
they will all appear to have the same IP address.
Show L2TP tunnel status
Web
Digi Connect IT® 4 User Guide
Configure an IPsec tunnel
for information about configuring an IPsec tunnel.
L2TP
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