Wireshark · Ethereal-dev: Re: [Ethereal-dev] patches to add interface descriptions

[Guy Harris <guy@xxxxxxxxxxxx>]

On Sep 9, 2003, at 7:36 AM, Nathan Jennings wrote:

> OK, maybe even more in the "Edit interface options" interface list. On 
> *nix with a loopback and Linux with "any", users will have at least 
> three interfaces.

That's true only if all *nix systems have at least two non-loopback 
devices on which you can capture; that's not necessarily the case:

	% ./tethereal -D
	1. en0
	2. lo0
	%

(I said "on which you can capture" as "ifconfig -a" reports some other 
interfaces, but they're not up and running so BPF doesn't let you bind 
to them; Ethereal/Tethereal report only interfaces that can be opened.)