Triton Digital needs to have visibility of the user-agent and the IP address of the listener at the HTTP level. With player-to-server implementations, this information comes directly from the player (and thus, the listener). But with server-to-server implementations, it refers to the server, not the listener.
For this reason, server-to-server implementations must be explicit with this information. You must configure your implementation so that the listener's user agent string and IP address are appended to the ad request. For more information, see Ad Request Parameters and Custom Streaming Environments in the Triton Digital On-Demand Specification.