[Winpcap-users] Windows 8 User bridge

[Gianluca Varenni]

Nuno,

Unfortunately, it's not just a matter of recompiling WinPcap. The limitation is due to the fact that WinPcap uses an older NDIS driver technology (NDIS 4.0 I believe, the technology used in Win2000). On windows 8, this version of NDIS is supported only as legacy and some advanced features (like this feature exposed by WinPcap) are not supported. When I added support for Win8 in WinPcap, I talked with the some folks in the MS Windows engineering team about the issue. They acknowledged the issue but are not able to fix it, it's simply "too much legacy". The right course of action would be a complete overhaul of the WinPcap  driver, switching to a newer and possibly different technology.

Have a nice day
GV


From: winpcap-users-bounces at winpcap.org [mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Nuno Antonio Dias Ferreira
Sent: Thursday, November 27, 2014 7:22 AM
To: chris.thomas at idappcom.com; winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Windows 8 User bridge
Importance: High

There are any way to compile WinPcap to get support to PCAP_OPENFLAG_NOCAPTURE_LOCAL in windows 8?

Melhores Cumprimentos / Best Regards
Nuno Antonio Dias Ferreira
Unidade de Automação de Sistemas de Energia / Power System Automation Unit
Efacec Engenharia e Sistemas, S.A.
Phone: 229403363
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From: winpcap-users-bounces at winpcap.org<mailto:winpcap-users-bounces at winpcap.org> [mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Chris Thomas
Sent: 26 de novembro de 2014 17:20
To: winpcap-users at winpcap.org<mailto:winpcap-users at winpcap.org>
Subject: Re: [Winpcap-users] Windows 8 User bridge

I've been doing something similar, and I also had a problem with PCAP_OPENFLAG_NOCAPTURE_LOCAL not working.
I gave up in the end, assuming that it was a feature that my NIC couldn't implement, and I had to create a workaround with some BPF filters instead.

Chris.

On 26/11/2014 15:41, Nuno Antonio Dias Ferreira wrote:
Hello,

I have a program which is a user level bridge. I use Winpcap framework to do that and it works fine on windows xp and windows 7 however I windows 8 I have a problem:
When I send anything to the network my problem stay in loop sending the same frame. I research a little bit and I found that last year winpcap just had a problem with the PCAP_OPENFLAG_NOCAPTURE_LOCAL flag, but it is now fixed. Can anyone help me with this?

Thanks
[NF] Nuno Ferreira



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