Which is an internet protocol encryption device that can be directly connected to Red local area networks?

The KG-84 is an internet protocol encryption device that is designed for application in local area networks, specifically for securing communication over these networks. It operates by encrypting data in transit, providing confidentiality and integrity for sensitive communications.

The relevance of the KG-84 lies in its ability to be connected to Red local area networks, which are typically used for classified or sensitive information exchange within government and military contexts. This encryption device supports various protocols, enabling secure transmissions across the network, making it suitable for environments where confidential data must be protected.

In this context, the other options, such as the KG-194, KIV-7, and KG-175, serve different functions or may have varied operational capabilities that do not align specifically with the question's emphasis on direct connection to Red local area networks, thereby highlighting why the KG-84 is appropriately recognized for this characteristic.