Hi,

I'd be great to be able to to log remote port in access-log, much like haproxy's client_port.

Their definition: "client_port" is the TCP port of the client which initiated the connection. If the connection was accepted on a UNIX socket instead, the port would be replaced with the ID of the accepting socket.

http://cbonte.github.io/haproxy-dconv/1.6/configuration.html#8.2.3