VPN Firewall

What Does VPN Firewall Mean?

A VPN firewall is a type of firewall device that is designed specifically to protect against unauthorized and malicious users intercepting or exploiting a VPN connection.

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It can be in the form of hardware, software or an all-in-one firewall appliance, with the core objective to allow only legitimate VPN traffic access to the VPN service.

Techopedia Explains VPN Firewall

A VPN firewall is typically installed at the server end of a VPN, either at the front or back of the VPN server. When the firewall is installed at the back of a VPN server, it is configured with filters to allow only VPN-specific packets to pass. Similarly, when the firewall is installed at the front of a VPN, the firewall is configured to allow only tunnel data on its Internet interface to be passed to the server.

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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.