Jack wrote: > Hello Arno, > > I know about the components. They use ICS raw sockets. Because > ICS raw sockets does not capture broadcast packets, they don't > either :(
>From what I know raw sockets are not reliable, I tried several applications based on raw sockets when I was looking for a sniffer. All those apps. I've been tested didn't satisfy my need, so I ended up with Ethereal which uses Winpcap. >> I tried a C++ library based on raw socket and it worked. I briefly >> looked at the C++ code and didn't find anything obvious. If you have the source it shouldn't be a big deal to find out the difference between TWsocket's and their API calls. --- Arno Garrels [TeamICS] http://www.overbyte.be/eng/overbyte/teamics.html > > -- > Best regards, > Jack > > Tuesday, March 7, 2006, 9:58:59 AM, you wrote: > >> Jack wrote: >>> Resending ... anyone has any idea why this is happening? > >> These components use ICS: >> http://www.magsys.co.uk/delphi/magmonsock.asp > >> "Raw sockets which are available with Windows 2000 and later. >> This uses WSocket from the François Piette internet component suite, >> from http://www.overbyte.be/. Major benefit is that no other >> software needs to be installed, but raw sockets don't seem to work >> fully with some network adaptors, and ignore non-IP protocols. Some >> adaptors may capture received packets, but ignore anything sent." > >> --- >> Arno Garrels [TeamICS] >> http://www.overbyte.be/eng/overbyte/teamics.html > > >>> >>> ===8<==============Original message text=============== >>> Hello Francois, >>> >>> I used the code you posted earlier to capture traffic with raw >>> sockets. It's the UDP packets I'm interested. It all works fine >>> with packets specifically addressed to this IP. However, all >>> broadcast packets are not captured, such as 192.168.1.255. >>> I tried a C++ library based on raw socket and it worked. I briefly >>> looked at the C++ code and didn't find anything obvious. Can you think >>> of any reason that the ICS raw sockets is not doing that? >>> >>> WSocket1.ReqVerHigh := 2; >>> WSocket1.ReqVerLow := 2; >>> WSocket1.Proto := 'raw_ip'; >>> WSocket1.Port := '0'; >>> WSocket1.ComponentOptions := [wsoSIO_RCVALL]; >>> WSocket1.Addr := '192.168.1.102'; >>> WSocket1.Listen; >>> >>> -- >>> Best regards, >>> Jack >>> ===8<===========End of original message text=========== -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
