Free Nat Traversal Downloads

Comprehensive network firewall

Kerio WinRoute Firewall

Kerio Technologies, Inc.

This software is an ICSA certified gateway firewall for small to medium organizations. It comes equipped with unified security, web content filter, employee monitoring, bandwidth controls and VPN.

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Create and Manage the SSH encrypted Tunnel

Internet Secure Tunneling

Han-soft Software

Internet Secure Tunneling can forward otherwise insecure TCP traffic through encrypted SSH Secure Shell tunnel. You can secure for example DATABASE, POP3, SMTP and HTTP connections that would otherwise be insecure.

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Messenger with VPN support


Kresimir Petric

Wippien is instant messaging client with VPN support. It combines different protocols - ICQ, MSN, AIM, Yahoo, Google Talk, and allows you to make virtual private networks with your peers.

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An easy to use and full featured web server


Team Johnlong

An easy to use and full featured web server that supports php/cgi/ssl/upnp/ics/icf

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Virtual private peer-to-peer components

BigSpeed Peer-to-Peer SDK

BigSpeed Computing Inc.

Agent/Hub components for private peer-to-peer file sharing and instant messaging.Sample applications are included in Visual Basic .NET and Delphi 7.

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Free SIP Softphone



Easy to use Free SIP Softphone for voip providers and customized softphone for voip providers. Supports tunneling.

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Server-less VPN and Peer to Peer VPN


VNN Networks, Inc.

Server-less and peer to peer VPN based on NAT traversal (RFC-3489). VNN is useful for the users in different branch offices to use their LAN based applications across the Internet without requiring them to reconfigure their routers or firewalls.

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wodVPN component activeX


WeOnlyDo! Inc.

wodVPN is VPN peer-to-peer ActiveX component that is used to establish Virtual Private Network between two peers. All P2P communication is encrypted and secured. Peers are able to forward local and remote ports, send messages, etc.

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