What is the state representation for UDP traffic in both directions?

The representation for UDP traffic in both directions is indicated as proto_state=01. In network protocols, the state representation often indicates whether the traffic is considered established or not.

For UDP, which is a connectionless protocol, the state representation signifies the presence of bidirectional traffic without requiring a session establishment like TCP. The "01" state specifically indicates traffic is flowing in both the incoming and outgoing directions. This is important for firewall configurations, as it allows for the proper handling of UDP packets that may not maintain a session state, yet still need to be processed for valid communication between endpoints.

Understanding this state representation is crucial in configurations that rely on stateful inspection methods, particularly in environments that leverage firewalls to monitor and filter network traffic. In contrast, other state representations like "00", "10", and "11" do not apply to the condition of bidirectional UDP traffic, as these would either denote different states of traffic (like one-directional or inactive states).