[Winpcap-users] packet sending on win7

Fri Jul 2 13:20:22 PDT 2010

Finnaly, i found the problem. It wasn't connection problems or problems with
code nor problem with win7 itself. it was some logical miss about routing
methods.
sorry for disturbing you, it work well now.

2010/7/1 Mark Pizzolato - WinPCap-Users <
winpcap-users-20040408 at subscriptions.pizzolato.net>

> Gianluca is trying to be nice and get you to “walk before you run”.  This
> will let you realize that the issues you may be having are either due to
> something in winpcap or something in the network stack or something in your
> code.
>
>
>
> If you can successfully talk on a direct wire, then you know something you
> don’t know now.
>
>
>
> If there is nothing wrong with your code then things should work on a
> direct wire.  Prove that to yourself and to us out here in the peanut
> gallery.
>
>
>
> Once that works, you are still faced with two different issues:
>
> 1)      Talking out the modem.
>
> 2)      Talking across the Wifi link.
>
>
>
> Each are different problems with different reasons why they may or may not
> work.
>
>
>
> If you take baby steps you’ll learn how/why you may be tripping yourself
> up.
>
>
>
> Good Luck.
>
>
>
> -          Mark Pizzolato
>
>
>
> *From:* winpcap-users-bounces at winpcap.org [mailto:
> winpcap-users-bounces at winpcap.org] *On Behalf Of *inter inter
> *Sent:* Thursday, July 01, 2010 12:17 PM
>
> *To:* winpcap-users at winpcap.org
> *Subject:* Re: [Winpcap-users] packet sending on win7
>
>
>
> No, i dont have connection pc2pc, its not important actually.
> my internet connection work via pppoe, modem is in bridge mode.
> but it doesnt matter too.
>
> 2010/7/1 Gianluca Varenni <gianluca.varenni at cacetech.com>
>
> What I asked is a direct connection between the two computers, not between
> the computer and the modem.
>
>
>
> BTW, are you sure it's a DSL modem and not a DSL router?
>
>
>
> Have a nice day
>
> GV
>
>
>
> *From:* inter inter <intercepter.mail at gmail.com>
>
> *Sent:* Thursday, July 01, 2010 10:53 AM
>
> *To:* winpcap-users at winpcap.org
>
> *Subject:* Re: [Winpcap-users] packet sending on win7
>
>
>
> i already have that kind of connection.
> win7 <-ethernet_cable-> adsl_modem
>
> i can ping modem from cmd and i get reply, but when i send packet myself i
> dont get reply, i tried to send arp request and didn't get anything back.
> the deal is that the packets do not reach the physical link. something
> between winpcap -> ... -> physical link blocks it, some security filter,
> network driver or whatever else...and i want to know exactly where is the
> problem.
> anyone ever tried to inject packets on win7?
> to avoid more questions:
> all network preferences are ok, no physical problems.
> the code is written right, it works on XP.
>
> 2010/7/1 Gianluca Varenni <gianluca.varenni at cacetech.com>
>
> Can you please try connecting the two computers directly with an ethernet
> cable and see what happens?
>
>
>
> Have a nice day
>
> GV
>
>
>
> *From:* inter inter <intercepter.mail at gmail.com>
>
> *Sent:* Thursday, July 01, 2010 9:23 AM
>
> *To:* winpcap-users at winpcap.org
>
> *Subject:* Re: [Winpcap-users] packet sending on win7
>
>
>
> I can not send packets from win7, it has 2 network interfaces, ethernet
> with direct connection to adsl modem, and wifi connection to notebook.
> The packets i send from win7 are visible in wireshark, but actually they do
> not transmiting over network. both devices (modem and notebook do not
> receive them).
>
> 2010/7/1 Gianluca Varenni <gianluca.varenni at cacetech.com>
>
> Are you saying that the issue happens when transmitting from either a wired
> host (with an ethernet connection) or a wireless card?
>
>
>
> Have a nice day
>
> GV
>
>
>
> *From:* inter inter <intercepter.mail at gmail.com>
>
> *Sent:* Wednesday, June 30, 2010 9:39 PM
>
> *To:* winpcap-users at winpcap.org
>
> *Subject:* Re: [Winpcap-users] packet sending on win7
>
>
>
> One host directly through the cable, and the second via WIFI.
>
> 2010/6/30 Gianluca Varenni <gianluca.varenni at cacetech.com>:
> > Are the two hosts connected directly with a cable or these is a
> > switch/router in between?
> >
> > Have a nice day
> > GV
> >
> > --------------------------------------------------
> > From: "inter inter" <intercepter.mail at gmail.com>
> > Sent: Wednesday, June 30, 2010 12:44 PM
> > To: <winpcap-users at winpcap.org>
> > Subject: [Winpcap-users] packet sending on win7
> >
> >> Good day, i have a problem with sending packets on Win7.
> >> I've spent a lot of time trying to fix the problem. So the deal is, i
> >> do pcap_sendpacket (with icmp request) to some host in network, and i
> >> dont get reply, but i see the outgoing packet in wireshark. I execute
> >> ping from cmd, comparing my packet and the packet Windows sends - they
> >> are the same (except for crc and id). However, i dont get reply.
> >> I started wireshark on remote host and realized that nothing comes to
> >> it! I loaded some old code which sends packets too (and works
> >> perfectly on XP) and it didnt work either. It seems to me that the
> >> problem is with Win7, i tried to turn off every available security
> >> measures and had no luck :(
> >> _______________________________________________
> >> Winpcap-users mailing list
> >> Winpcap-users at winpcap.org
> >> https://www.winpcap.org/mailman/listinfo/winpcap-users
> >
> > _______________________________________________
> > Winpcap-users mailing list
> > Winpcap-users at winpcap.org
> > https://www.winpcap.org/mailman/listinfo/winpcap-users
> >
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