IPsec L2TP and IPsec with IPComp compression

In some environments IPsec L2TP packets were sporadically misrouted. With IPsec compression enabled, some packets were mistakenly dropped by the firewall.

Making use of the Windows certificate store with OpenVPN

New types of the Windows installation packages for OpenVPN store the key-pair in the Windows certificate store. For normal connections the user certificate store is used. PLAP/SBL (Start before Login) packages have to add the key to the machine certificate store.

Automatic download of URL lists

Maintaining or importing data into URL filter lists used to be a manual task. Now it is possible to automatically download URL lists from a web server. The lists may include whole domains, URLs, IP addresses and patterns such as "example.*".

Minor bugfixes and improvements

Security vulnerabilities in web proxy

Several vulnerabilities have been fixed in the web proxy. The most critical one allows an attacker to execute code on the device, provided user authentication with the digest algorithm is enabled. An other critical vulnerabilitiy allowed smuggling of requests or responses through the proxy by sending contradictory meta information.

IPsec connections to clients

In version 7.2-1.0 connections of type "Windows IKEv2" failed to be loaded due to an error in the configuration template. The same happened for connections of type "Client" if the IKEv2 protocol was selected and no virtual IP was configured.
When downloading a setup package for Windows IPsec-L2TP (Powershell) a setup package for Windows IKEv2 was delivered.

Wireguard DNS suffix

While preparing a Wireguard configuration for the peer, you can now include a DNS suffix.

Minor bugfixes and improvements


DEFENDO forces a collection of best-of-breed security modules like firewall, VPN, proxies, virus scanner and anti spam system to interact for one purpose:
To be protected from all online threats and unwanted contents like malicious code, spam and hacker attacks.


Each IT scenario is different. The DEFENDO product family will adapt precisely to your demands.
DEFENDO applies for simple Internet connections of small companies, for headquarters / branch office WANs, as well as for complex multi-tiered firewall systems.

More good reasons

  • No backdoors
  • More than 20 years of Internet security experience
  • Award-winning product
  • Support by our development engineers
  • Reseller loyalty
  • Made in Germany