Amrita© VPN can be used to connect two private networks through a public network such as the Internet. It requires only one end to have a direct Internet connection preferably with a permanent public IP address. The other end could be connected to the Internet via a masquerading router.

Features include:

• Easy to configure and install. No kernel modifications. Works at application-level. Uses SSL (OpenSSL library) for strong encryption and authentication.
• Fast packet relay.
• Comes with a tool (amvpn-keytool) that makes key generation/management quite easy.
• Allows connecting through an intermediate proxy.
• Allows configurable automatic reconnecting after a connection break.
• Needs root privileges only during the initialization time, afterwards runs without root privileges.
• Multiple instances can be easily set up and managed.
• Events such as connects, disconnects and modification of key/cert files can be notified to the admin via email.
• Has ability to transparently forward Microsoft networking messages to the remote network. This enables the two networks to see each other's machines in the 'Network Neighborhood'.
• Keep alive option to quickly detect connection breaks, allowing fast reconnects.The tunnel can be discontinued by killing the amvpn process.