[Winpcap-users] why pcap_findalldevs run about 30 seconds

[工商银行]

I migrate to  use Winpcap 4.0  .
 When the Windows xp boot,and i enter the user password to login the windows
desktop.
I found that  the pcap_findalldevs function consume about 34 seconds.
My question is how long does the winpcap driver loaded ?
Does it loaded earlier than the network interface loaded?

The program is  prepared  for a local network to authorization.
It is a radius client program
It doesn't enable IPv6 .
It doesn't enable wireless zero configuration service.

My program is put into the windows system service.auto started.

My environment is windows xp sp2 ,winpcap 4.0

Thank you!
                                                 michael


在07-12-10，工商银行 <my95588 at gmail.com> 写道：
>
> Thank you for your suggestion.
> I try it.
>                          michael
>
>
>
> 2007/12/8, Gianluca Varenni <gianluca.varenni at cacetech.com>:
> >
> >  This can be due to a number of reasons.
> >
> > Do you have IPv6 enabled on your machine? this might slow down things a
> > lot.
> > Are you calling pcap_findalldevs from within a service that starts at
> > boot time (maybe before you notify the SCM that the service is up and
> > running)?
> >
> > Also, I strongly suggest you to migrate to WinPcap 4.0. It contains a
> > huge number of bug fixes, and we do not provide any support for such an old
> > version of WinPcap.
> >
> > Have a nice day
> > GV
> >
> >
> >
> >  ----- Original Message -----
> > *From:* 工商银行 <my95588 at gmail.com>
> > *To:* winpcap-users at winpcap.org
> > *Sent:* Friday, December 07, 2007 12:34 AM
> > *Subject:* [Winpcap-users] why pcap_findalldevs run about 30 seconds
> >
> >
> > Hi,all
> > I have developped a radius client application .
> > and use libnet and winpcap API.
> > The purpose is that deny the unauthoried user.
> > The procedure is
> > 1 the windows xp started.
> > 2.my application started to authorized with the radius server.
> > I trace my application that found pcap_findalldevs consume about 30
> > seconds.
> > pcap_findalldevs run so slowly?
> > Can anyone help me?
> > My environment:Windows xp,winpcap 3.0
> >
> >                       michael
> >
> >
> > ------------------------------
> >
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> >
> >
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> >
> >
>
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