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Wireshark-users: Re: [Wireshark-users] where is WTAP_ENCAP type 80 (K12) in Import menue/or why i

From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Mon, 4 Mar 2013 10:38:03 -0800
On Mar 4, 2013, at 10:03 AM, Ariel Burbaickij <ariel.burbaickij@xxxxxxxxx> wrote:

> I am using Wireshark 1.8.5 and I attempt to import rf5 (Tektronix file) but I do not see it in Import menue as a selection option == I see GCOM Serial (78) and Juniper MLPP (81)  -- numbers in parenthesis are the ones from wtap.h, of course. Now, I do not see NETTTL_X25 (79) and in particular K12 (80) -- is it something done on purpose?

Yes.

> If yes, why so?

Because:

	"Import" really means "read a text file in the same way that text2pcap does";

	what text2pcap does is convert a text file containing packet data to a pcap file;

	that conversion requires that the user specify a link-layer header type for the raw hex data being read;

	not all link-layer header types that Wireshark can handle have corresponding pcap/pcap-ng link-layer header types - in particular, neither Tektronix rf5 nor HP nettl X.25 do.

> If not, what can/should I do here? I am able to open rf5 files just fine.

So why isn't that good enough?  What were you expecting "Import" to do that "Open" didn't do?

It sounds as if the only problem here might be that "Import" isn't necessarily the right name for that menu item; perhaps "Open packet hex dump text file", or something such as that, would be better.