Re: [Winpcap-users] Adapting WinPcap’s functionality for connecting to Wi-Fi access points (APs).

George S. Lockwood gslockwood at
Fri Jul 14 03:55:54 GMT 2006

Thanks man, that's really great you understand it all!

I tried removing the braces and the prefix to the guid part, tomorrow
morning I'll remove the apostrophes. I think I included the  's because they
were in an example!

I believe I tried -i"Intel" (for my card) but not sure about 's or "s or
what.  So I'll try -iIntel first.

If I can just get past this, then maybe I'll see whether I have a viable
config file.

so is the order of steps
1. learn of the NIC's interface.
2. use that with the wpa_supplicant.exe -i -c config.file
3. start ndis_event.exe                             (or is this optional)
4. then wpa_cli                                         (or is this too
4. start wpa_gui

use the ui.  Does that sound right?

so far when I've started ndis_event.exe, it seems to give me an error that
is relatable to the ctrl_interface=/var/run/wpa
> _supplicant except instead of wpa_supplicant it meantions ......\bfd or
> close to that.

Without the documentation in front of me, I don't know what this exe does,
but is sounds like it somehow captures NIC messages such as how a connection

And Bryan, what about Windows Zero Config (WZC)?

I guess I see for myself but perhaps you have some insight.  any other
tricks you've discovered in your journey into this supplicant s/w???

On 7/13/06, Bryan Kadzban <bryan at> wrote:
> George S. Lockwood wrote:
> > maybe you are able to quickly spot a problem with this...I don't
> > understand the "NDIS: Could not find interface
> > ''\Device\NPF_{556DEBC4-B686-4A77-A2D8-7F34F3A5708F}''
> It means you have an extra set of ' characters around the interface
> name.  ;-)  You don't have to escape the string with single quotes like
> that, unless you built wpa_supplicant yourself under Cygwin.  (You can
> also use the first word of the description given for your card, based on
> its entry in Device Manager; that's what I do.  So for instance, a
> "Linksys WRT54GS Blah Blah" card could be specified with -iLinksys.)
> > On 7/13/06, George S. Lockwood <gslockwood at> wrote:
> >
> >> I think the error is about this line
> >> ctrl_interface=/var/run/wpa_supplicant
> >>
> >> I'm running windows xp and not unix and not sure what is correct...
> That is still required.  There is no /var/run/wpa_supplicant on windows,
> but if that line isn't there, then wpa_cli (and wpa_gui) won't work.
> Without that setting, the UDP socket that wpa_cli and wpa_gui use will
> not be set up.  The value never used to matter, although I seem to
> remember some talk about using a named pipe instead of a UDP socket in
> the release notes for one of the 0.5.x versions, so it might matter if
> you use the most recent version.
> (We may want to move this discussion to hostap at, since that's
> the wpa_supplicant mailing list, or to private mail.  We're starting to
> get way off topic for winpcap-users.)
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> Winpcap-users at
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