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 < [email protected]> wrote: > You might want to give npcap a try: https://github.com/nmap/npcap > > See also: https://wiki.wireshark.org/CaptureSetup/Loopback > > - Chris > > > > *From:* [email protected] [ > mailto:[email protected] > <[email protected]>] *On Behalf Of *Paul Bußmann > *Sent:* Thu, November 05, 2015 4:39 AM > *To:* [email protected] > *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:* [email protected] > *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:* [email protected] [ > mailto:[email protected] > <[email protected]>] *Im Auftrag von *Gianluca Varenni > *Gesendet:* Montag, 21. Januar 2013 18:17 > *An:* [email protected] > *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:* [email protected] [ > mailto:[email protected] > <[email protected]>] *On Behalf Of *Paul Bußmann > *Sent:* Monday, January 21, 2013 7:47 AM > *To:* [email protected] > *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. > > _______________________________________________ > Winpcap-users mailing list > [email protected] > https://www.winpcap.org/mailman/listinfo/winpcap-users > >
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