Discussion:
[Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8
Paul Bußmann
2013-01-21 15:46:33 UTC
Permalink
Hello,



I am running Winpcap 4.1.2 on Windows 8 and it seems as if PCAP_OPENFLAG_NOCAPTURE_LOCAL is not working. I still see all the traffic to the adapter. The program runs fine for Win XP and Windows 7?



I searched for this issue (especially with term "Windows 8"), but got no results.



What can cause this? Any help is appreciated!



Best regards,

Paul
Gianluca Varenni
2013-01-21 17:17:09 UTC
Permalink
WinPcap 4.1.2 is not officially supported on Windows 8 (in fact the installer should fail on it).

Have a nice day
GV

From: winpcap-users-***@winpcap.org [mailto:winpcap-users-***@winpcap.org] On Behalf Of Paul Bußmann
Sent: Monday, January 21, 2013 7:47 AM
To: winpcap-***@winpcap.org
Subject: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

Hello,

I am running Winpcap 4.1.2 on Windows 8 and it seems as if PCAP_OPENFLAG_NOCAPTURE_LOCAL is not working. I still see all the traffic to the adapter. The program runs fine for Win XP and Windows 7?

I searched for this issue (especially with term "Windows 8"), but got no results.

What can cause this? Any help is appreciated!

Best regards,
Paul
Paul Bußmann
2013-01-22 07:25:51 UTC
Permalink
Hi Gianluca,



thank you for your prompt reply!



Is there a way to get an alpha or beta version (not officially supported) that could do the trick?



Best regards,

Paul



Von: winpcap-users-***@winpcap.org [mailto:winpcap-users-***@winpcap.org] Im Auftrag von Gianluca Varenni
Gesendet: Montag, 21. Januar 2013 18:17
An: winpcap-***@winpcap.org
Betreff: Re: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8



WinPcap 4.1.2 is not officially supported on Windows 8 (in fact the installer should fail on it).



Have a nice day

GV



From: winpcap-users-***@winpcap.org [mailto:winpcap-users-***@winpcap.org] On Behalf Of Paul Bußmann
Sent: Monday, January 21, 2013 7:47 AM
To: winpcap-***@winpcap.org
Subject: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8



Hello,



I am running Winpcap 4.1.2 on Windows 8 and it seems as if PCAP_OPENFLAG_NOCAPTURE_LOCAL is not working. I still see all the traffic to the adapter. The program runs fine for Win XP and Windows 7?



I searched for this issue (especially with term "Windows 8"), but got no results.



What can cause this? Any help is appreciated!



Best regards,

Paul
Paul Bußmann
2015-11-05 09:38:50 UTC
Permalink
Hi Gianluca,

we are affected by the known bug "Transmitted packets are looped back on Windows 8 even when using the flag PCAP_OPENFLAGS_NOCAPTURE_LOCAL for pcap_open." in version 4.1.3, 08 mar 13.
In some situations we cannot know from the winpcap frames by any means if they are sent or received therefor we really need PCAP_OPENFLAGS_NOCAPTURE_LOCAL.
Is there any alpha or beta version (not officially supported) available that works?

Best regards,
Paul

Von: Paul Bußmann
Gesendet: Dienstag, 22. Januar 2013 08:26
An: winpcap-***@winpcap.org
Betreff: AW: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

Hi Gianluca,

thank you for your prompt reply!

Is there a way to get an alpha or beta version (not officially supported) that could do the trick?

Best regards,
Paul

Von: winpcap-users-***@winpcap.org<mailto:winpcap-users-***@winpcap.org> [mailto:winpcap-users-***@winpcap.org] Im Auftrag von Gianluca Varenni
Gesendet: Montag, 21. Januar 2013 18:17
An: winpcap-***@winpcap.org<mailto:winpcap-***@winpcap.org>
Betreff: Re: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

WinPcap 4.1.2 is not officially supported on Windows 8 (in fact the installer should fail on it).

Have a nice day
GV

From: winpcap-users-***@winpcap.org<mailto:winpcap-users-***@winpcap.org> [mailto:winpcap-users-***@winpcap.org] On Behalf Of Paul Bußmann
Sent: Monday, January 21, 2013 7:47 AM
To: winpcap-***@winpcap.org<mailto:winpcap-***@winpcap.org>
Subject: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

Hello,

I am running Winpcap 4.1.2 on Windows 8 and it seems as if PCAP_OPENFLAG_NOCAPTURE_LOCAL is not working. I still see all the traffic to the adapter. The program runs fine for Win XP and Windows 7?

I searched for this issue (especially with term "Windows 8"), but got no results.

What can cause this? Any help is appreciated!

Best regards,
Paul
Maynard, Chris
2015-11-09 16:12:36 UTC
Permalink
You might want to give npcap a try: https://github.com/nmap/npcap
See also: https://wiki.wireshark.org/CaptureSetup/Loopback
- Chris

From: winpcap-users-***@winpcap.org<mailto:winpcap-users-***@winpcap.org> [mailto:winpcap-users-***@winpcap.org] On Behalf Of Paul Bußmann
Sent: Thu, November 05, 2015 4:39 AM
To: winpcap-***@winpcap.org<mailto:winpcap-***@winpcap.org>
Subject: Re: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

Hi Gianluca,

we are affected by the known bug "Transmitted packets are looped back on Windows 8 even when using the flag PCAP_OPENFLAGS_NOCAPTURE_LOCAL for pcap_open." in version 4.1.3, 08 mar 13.
In some situations we cannot know from the winpcap frames by any means if they are sent or received therefor we really need PCAP_OPENFLAGS_NOCAPTURE_LOCAL.
Is there any alpha or beta version (not officially supported) available that works?

Best regards,
Paul

Von: Paul Bußmann
Gesendet: Dienstag, 22. Januar 2013 08:26
An: winpcap-***@winpcap.org<mailto:winpcap-***@winpcap.org>
Betreff: AW: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

Hi Gianluca,

thank you for your prompt reply!

Is there a way to get an alpha or beta version (not officially supported) that could do the trick?

Best regards,
Paul

Von: winpcap-users-***@winpcap.org<mailto:winpcap-users-***@winpcap.org> [mailto:winpcap-users-***@winpcap.org] Im Auftrag von Gianluca Varenni
Gesendet: Montag, 21. Januar 2013 18:17
An: winpcap-***@winpcap.org<mailto:winpcap-***@winpcap.org>
Betreff: Re: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

WinPcap 4.1.2 is not officially supported on Windows 8 (in fact the installer should fail on it).

Have a nice day
GV

From: winpcap-users-***@winpcap.org<mailto:winpcap-users-***@winpcap.org> [mailto:winpcap-users-***@winpcap.org] On Behalf Of Paul Bußmann
Sent: Monday, January 21, 2013 7:47 AM
To: winpcap-***@winpcap.org<mailto:winpcap-***@winpcap.org>
Subject: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not work on Windows 8

Hello,

I am running Winpcap 4.1.2 on Windows 8 and it seems as if PCAP_OPENFLAG_NOCAPTURE_LOCAL is not working. I still see all the traffic to the adapter. The program runs fine for Win XP and Windows 7?

I searched for this issue (especially with term "Windows 8"), but got no results.

What can cause this? Any help is appreciated!

Best regards,
Paul

--




CONFIDENTIALITY NOTICE: This message is the property of International Game Technology PLC and/or its subsidiaries and may contain proprietary, confidential or trade secret information. This message is intended solely for the use of the addressee. If you are not the intended recipient and have received this message in error, please delete this message from your system. Any unauthorized reading, distribution, copying, or other use of this message or its attachments is strictly prohibited.
食肉大灰兔V5
2015-11-10 05:36:02 UTC
Permalink
Hi Paul,

As Chris pointed, Npcap *DOES* support PCAP_OPENFLAG_NOCAPTURE_LOCAL option
in its latest version:
https://svn.nmap.org/nmap-exp/yang/NPcap-LWF/npcap-nmap-0.05-r2.exe

This question exactly got asked a few days ago at nmap's mail list and I
have added this feature at that moment, see this:
http://seclists.org/nmap-dev/2015/q4/6

Please allow me to paste some explanations from the above post here:

Actually, this functionality can be easily implemented by Npcap, because
the three packet flowing paths: *receive, other-send, self-send* are
totally *separated* in Npcap, so it's convenient to only restrict the
self-send path using flag.

Remember: other softwares can still see all possible traffic, for instance,
your software disabled the local-sent packets
using PCAP_OPENFLAGS_NOCAPTURE_LOCAL, then your software no longer sees the
self-sent packets, but another software like Wireshark can still see them,
because they're not "self" sent.


Cheers,
Yang


On Tue, Nov 10, 2015 at 12:12 AM, Maynard, Chris <
Post by Maynard, Chris
You might want to give npcap a try: https://github.com/nmap/npcap
See also: https://wiki.wireshark.org/CaptureSetup/Loopback
- Chris
*Sent:* Thu, November 05, 2015 4:39 AM
*Subject:* Re: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not
work on Windows 8
Hi Gianluca,
we are affected by the known bug “Transmitted packets are looped back on
Windows 8 even when using the flag PCAP_OPENFLAGS_NOCAPTURE_LOCAL for
pcap_open.” in version 4.1.3, 08 mar 13.
In some situations we cannot know from the winpcap frames by any means if
they are sent or received therefor we really need
PCAP_OPENFLAGS_NOCAPTURE_LOCAL.
Is there any alpha or beta version (not officially supported) available that works?
Best regards,
Paul
*Von:* Paul Bußmann
*Gesendet:* Dienstag, 22. Januar 2013 08:26
*Betreff:* AW: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not
work on Windows 8
Hi Gianluca,
thank you for your prompt reply!
Is there a way to get an alpha or beta version (not officially supported)
that could do the trick?
Best regards,
Paul
*Gesendet:* Montag, 21. Januar 2013 18:17
*Betreff:* Re: [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not
work on Windows 8
WinPcap 4.1.2 is not officially supported on Windows 8 (in fact the
installer should fail on it).
Have a nice day
GV
*Sent:* Monday, January 21, 2013 7:47 AM
*Subject:* [Winpcap-users] PCAP_OPENFLAG_NOCAPTURE_LOCAL seems to not
work on Windows 8
Hello,
I am running Winpcap 4.1.2 on Windows 8 and it seems as if
PCAP_OPENFLAG_NOCAPTURE_LOCAL is not working. I still see all the traffic
to the adapter. The program runs fine for Win XP and Windows 7?
I searched for this issue (especially with term “Windows 8”), but got no
results.
What can cause this? Any help is appreciated!
Best regards,
Paul
--
CONFIDENTIALITY NOTICE: This message is the property of International Game
Technology PLC and/or its subsidiaries and may contain proprietary,
confidential or trade secret information. This message is intended solely
for the use of the addressee. If you are not the intended recipient and
have received this message in error, please delete this message from your
system. Any unauthorized reading, distribution, copying, or other use of
this message or its attachments is strictly prohibited.
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