The R&S®SITLine ETH is a family of devices for Ethernet encryption and creating secure “layer 2 virtual private networks” (L2 VPN). The R&S®SITLine ETH protects companies and organizations against espionage and manipulation of data that is transported via Ethernet over landline, radio relay or satellite links. The devices in this product family are BSI-approved and can be used in a flexible manner in many stationary and mobile applications.