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Barracuda SSL VPN


This Firmware Version Is Going End-Of-Support
As of 1st March 2019, all new sales for the Barracuda SSL VPN product will cease. Only renewals of software and hardware subscriptions for a maximum of one year are available for a limited time. 1st March 2020: All Barracuda SSL VPN sales will cease; neither new sales nor any renewals will be available. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support and services until your contract expires.

SSL Tunnels

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SSL Tunnels are used to encrypt data for client/server applications which normally do not use encryption. The tunnel is created by the SSL VPN Agent and terminated at the Barracuda SSL VPN (local tunnel). The remote user does not connect directly to the remote resource as in a VPN, but to a Port on the interface. The SSL VPN Agent accepts the local connection and forwards the traffic through the SSL tunnel. The Barracuda SSL VPN forwards the traffic to the destination IP and Port defined in the SSL tunnel configuration. The traffic from the Barracuda SSL VPN to the destination IP in the network is not encrypted anymore.


SSL tunnels can be configured to only allow local connections or to allow connections directly to the remote network. It is also possible to define the source IP address of the SSL tunnel, so that clients in the same remote network can share a SSL tunnel. The tunnel is terminated when the session is closed or timed out.

Next steps

To create a SSL Tunnel complete the following instructions: How to Create an SSL Tunnel.

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