+o Protocol (2 bytes) - The internet protocol used for the key
+ agreement connection. Possible values are 0 for TCP and 1 for
+ UDP. Other values are unsupported. This is a 16 bit MSB first
+ order value. If Hostname field is not present, the value in
+ this field is ignored.
+
+o Port (2 bytes) - The port where the SKE protocol is bound.