Wireshark · Ethereal-dev: [Ethereal-dev] Question regarding further 'analysis' of protocols

[Yaniv Kaul <ykaul@xxxxxxxxxxxxxx>]

I have a methodological question, about further processing protocols 
(similiar to the issue with 'missing' fields in DNS parser) I've asked 
last week.
I'll take for example, the FTP over IPv6 parser.
In EPSV command, it shows something like:
...<lower layers dissection>
File Transfer Protcol (FTP)
   Request Command: EPSV
   Request Arg: 2


While it's accurate, it is not complete, imho. What is request arg value 
2? The answer is that it's the Address Family (AF) number, where 2 means 
'Internet Protocol, Version 6'
(RFC 2428, section 2).
My question is, should we futher 'parse' this value (2, in this case), 
with the above description?
In packet-isakmp.c, for example, almost any value is parsed. For 
example, instead of showing "Next payload: 3", it shows: "Next payload: 
Transform (3)".

Opinions are welcome,

Y.