[Winpcap-users] Is it possible to use the wincap as the Tx/Rx
data path of my own TCP/IP protocol stack?
guy at alum.mit.edu
Wed Oct 26 06:52:57 GMT 2005
> I am developing an network enable embedded device. I need to setup a
> simulation environment to test my TCP/IP protocol stack in windows.
> 1. Can I use the winpcap as my network driver(winpcap can get/send the
> packet to ethernet chip) to connect with my TCP/IP protocol?
Any IP packet sent to your machine will be processed by Windows' IP
stack. A copy will also be handed to WinPcap, but that does *NOT* mean
that the Windows IP stack will not also receive the packet.
Libpcap/WinPcap is for
1) applications that passively sniff traffic (tcpdump/WinDump,
Ethereal, Analyzer, snoop, etc.)
2) applications that are implementing protocols that the OS on which
it's running does *NOT* implement.
It is *NOT* for replacing the OS's code to process a protocol; in
particular, the packet capture mechanisms it uses are *NOT* designed to
let you "take over" the processing of packets from the OS, so it's *NOT*
designed to let you do your own TCP/IP protocol stack.
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