[ns] packet type in the common header

[Sergio Andreozzi <sergio.andreozzi@lut.fi>]

I would like to use the packet type field in the common header to mark 
packet in a diffserv domain on a application base. In packet.h I found 
several packet types, but I checked, for instance, web traffic is marked 
as PT_TCP or PT_ACK, but not PT_HTTP.

In which way this field is generally filled?

Could you tell me in which file this field is set for http traffic, 
telnet and ftp?

Thanks


    Sergio