[Winpcap-users] Is it possible to use the wincap as the Tx/Rxdatapath of my own TCP/IP protocol stack?

[simonmychen]

Thanks to you that provide me such important informations.  My TCP/IP 
protocol stack includes the ARP, etherent implementation. I will follow your 
guide to solve my problem. Thanks again.

----- Original Message ----- 
From: "Guy Harris" <guy at alum.mit.edu>
To: <winpcap-users at winpcap.org>
Sent: Friday, October 28, 2005 1:55 PM
Subject: Re: [Winpcap-users] Is it possible to use the wincap as the 
Tx/Rxdatapath of my own TCP/IP protocol stack?


> simonmychen wrote:
>> Thanks to guy's response!  I know the winpcap's main application is for 
>> network packet capture and analysis. Because I need to find the soultion 
>> that can verify my TCP/IP protocol stack in PC simulation,  I just wanna 
>> discuss the possibility of  my need by winpcap.  Does anyone have tried 
>> this method? If I set the different IP addresses to winsocks and my own 
>> TCP/IP protocol stack, does the network run correctly(two IP in one MAC 
>> address)?
>
> Probably not.  You might try it, but don't be at all surprised if it 
> doesn't work - just because an IP packet goes to WinPcap, that doesn't 
> mean that it won't *also* go to the host's IP stack (WinPcap is not 
> *supposed* to arrange that packets it receives not go to the host's 
> networking stack - it's supposed to arrange that that they *DO* go to the 
> host's networking stack, so that WinPcap-based applications can be used to 
> watch the traffic to and from the host without disrupting what the host is 
> doing with the traffic).
>
> You might try picking a *different* MAC address and having WinPcap run in 
> promiscuous mode, and set a capture filter that accepts only 
> multicast/broadcast packets and packets being sent to that other MAC 
> address (at a previous company we used that technique for running our 
> software inside a UN*X process for development and testing, rather than on 
> our hardware).
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