Logging the remote host in Finagle

I'd like to log the called remote host to STDOUT when using Finagle Client. But as far as I see this is not possible via com.twitter.finagle.http.filter.LoggingFilter; Its #format (example see below) method cannot access the actual host:

• request.remoteHost() returns 0.0.0.0
• request.remoteAddress() returns an object which basically contains the above IP
• request.host() returns a None object

My first guess is/was that accessing the host is not possible because Finagle's client-side load balancing happens deeper in the stack.

This is the test code I use:

    LoggingFilter<Request> loggingFilter = new LoggingFilter<>(
            new Logger(this.getClass().getSimpleName(), java.util.logging.Logger.getLogger(this.getClass().getSimpleName())),

            new LogFormatter<Request, Response>() {
                @Override
                public String format(Request request, Response reply, Duration replyTime) {
                    return null;
                }

                @Override
                public String formatException(Request request, Throwable throwable, Duration replyTime) {
                    return null;
                }
            });

    Service<Request, Response> service = Http.client().newService("localhost:8090,localhost:8091");
    Future<Response> response = loggingFilter.andThen(service).apply(Request.apply("/profiles/me"));