VTCP consists of a remote access VPN client (VSClient) and a VPN gateway (VSGate). VSClient installs on the user's remote PC. The client intercepts traffic destined for the corporate network, encrypts it, and forwards it to the VPN gateway.

VSGate decrypts data received from VSClient and passes it to systems on the corporate network. VSGate also encrypts return traffic destined for VSClient. In most cases, VSGate sits behind a corporate firewall that has been configured to allow clients to establish a TCP tunnel to VSGate on the port required for VPN traffic.

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