<br>Thanks for the reply.<div><br></div><div>However guess, its better to restate my problem, so that i can make you people clear about my query.</div><div><br></div><div>I am using some 3 NICS ( network interface cards), which together get me 10 ports.</div>
<div>2 NICs are are from D-Link NIC cards which have 4 ports each in them, and another is NETGEAR NIC, which has 2 ports in it.</div><div><br></div><div>with the help of pcap_findalldevs() , i can obtain the list of all ports , along with details of NIC cards, their MAC_ addresses and others.</div>
<div><br></div><div>But my question is , pcap_findalldevs( ), gives me list of all 10 ports i am using,</div><div><br></div><div>assume i use a cross-cable and connect any 2 ports to form a loopback condition,then is their any function in wpcap, which tells me </div>
<div>which 2 ports are in loopback state among the 10 ports i am using.</div><div><br></div><div>or any other function is their apart from wpcap, which helps me to do this.</div><div><br></div><div><br></div><div>please help me to figure out this problem.</div>
<div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><div class="gmail_quote">On Sat, Jul 2, 2011 at 12:30 AM, <span dir="ltr"><<a href="mailto:winpcap-users-request@winpcap.org">winpcap-users-request@winpcap.org</a>></span> wrote:<br>
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Today's Topics:<br>
<br>
1. Re: PacketRequest() (geek techie)<br>
2. Re: how to find active ports (rajath kumara)<br>
3. Re: PacketRequest() (Gisle Vanem)<br>
4. Re: how to find active ports (Gisle Vanem)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Fri, 1 Jul 2011 11:22:52 +0530<br>
From: geek techie <<a href="mailto:geektechgo@gmail.com">geektechgo@gmail.com</a>><br>
To: <a href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</a><br>
Subject: Re: [Winpcap-users] PacketRequest()<br>
Message-ID: <BANLkTinLEjMWb7e_5N4zGTnPTXciqZ=<a href="mailto:cFQ@mail.gmail.com">cFQ@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hello,<br>
Please help me to understand wpcap API - PacketRequest ( ).<br>
<br>
<br>
any suggestions?<br>
<br>
On Thu, Jun 30, 2011 at 11:09 AM, geek techie <<a href="mailto:geektechgo@gmail.com">geektechgo@gmail.com</a>> wrote:<br>
<br>
> Hello,<br>
> could someone please elaborate on wpcap API - PacketRequest( ) ,<br>
> regarding its functionalities and what does it do?<br>
><br>
> Also is this function PacketRequest connected with NDIS-OID( object<br>
> identifiers), in any way ?<br>
> if so, explain how ?<br>
><br>
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Message: 2<br>
Date: Fri, 1 Jul 2011 17:16:27 +0530<br>
From: rajath kumara <<a href="mailto:rajathkumara@gmail.com">rajathkumara@gmail.com</a>><br>
To: <a href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</a><br>
Subject: Re: [Winpcap-users] how to find active ports<br>
Message-ID: <BANLkTikTpk=<a href="mailto:tjVbdNwyy7Vc0qq9LPK57yA@mail.gmail.com">tjVbdNwyy7Vc0qq9LPK57yA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hi,<br>
<br>
Kindly suggest me how to proceed for the below mentioned problem.<br>
your replies, will be valuable to me.<br>
<br>
On Thu, Jun 30, 2011 at 10:42 AM, rajath kumara <<a href="mailto:rajathkumara@gmail.com">rajathkumara@gmail.com</a>>wrote:<br>
<br>
> Hi,<br>
><br>
> Currently I am using wpcap function to obtain list of all ports in my<br>
> system.<br>
><br>
> but assume i need to find only active ports in my system, for this, is<br>
> their any wpcap function which will provide me<br>
> list of all active ports in my system?<br>
><br>
> for eg: i have some 10 ports in my system.<br>
> if i use a cross cable and create a loopback among 2 ports, then,<br>
> is their any wpcap function, which gives me list of only<br>
> loopback active ports?<br>
><br>
><br>
> kindly suggest me.<br>
><br>
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Message: 3<br>
Date: Fri, 01 Jul 2011 14:55:08 +0200<br>
From: Gisle Vanem <<a href="mailto:gvanem@broadpark.no">gvanem@broadpark.no</a>><br>
To: WinDump <<a href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</a>><br>
Subject: Re: [Winpcap-users] PacketRequest()<br>
Message-ID: <<a href="mailto:C0AE5B30A04E435E889740C843F77518@broadpark.no">C0AE5B30A04E435E889740C843F77518@broadpark.no</a>><br>
Content-Type: text/plain; CHARSET=US-ASCII; format=flowed;<br>
reply-type=original<br>
<br>
"geek techie" <<a href="mailto:geektechgo@gmail.com">geektechgo@gmail.com</a>> wrote:<br>
<br>
> Please help me to understand wpcap API - PacketRequest ( ).<br>
<br>
the PacketRequest() function is used to send an OID (object ID number) to<br>
the interface card driver. It can be used, for example, to retrieve the status<br>
of the error counters on the adapter, its MAC address, the list of the multicast<br>
groups defined on it, and so on.<br>
<br>
E.g. see here:<br>
<a href="http://www.winpcap.org/docs/docs_41b5/html/struct__PACKET__OID__DATA.html" target="_blank">http://www.winpcap.org/docs/docs_41b5/html/struct__PACKET__OID__DATA.html</a><br>
<br>
or Google for "PacketRequest + WinPcap".<br>
<br>
--gv<br>
<br>
<br>
------------------------------<br>
<br>
Message: 4<br>
Date: Fri, 01 Jul 2011 15:11:07 +0200<br>
From: Gisle Vanem <<a href="mailto:gvanem@broadpark.no">gvanem@broadpark.no</a>><br>
To: WinDump <<a href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</a>><br>
Subject: Re: [Winpcap-users] how to find active ports<br>
Message-ID: <<a href="mailto:772EE3BDF5AF48A39F8A3738749D7FC7@broadpark.no">772EE3BDF5AF48A39F8A3738749D7FC7@broadpark.no</a>><br>
Content-Type: text/plain; CHARSET=US-ASCII; format=flowed;<br>
reply-type=original<br>
<br>
"rajath kumara" <<a href="mailto:rajathkumara@gmail.com">rajathkumara@gmail.com</a>> wrote:<br>
<br>
> Currently I am using wpcap function to obtain list of all ports in my<br>
> system.<br>
<br>
I thought you were talking about TCP/UDP-ports until ...<br>
<br>
> but assume i need to find only active ports in my system, for this, is<br>
> their any wpcap function which will provide me<br>
> list of all active ports in my system?<br>
><br>
> for eg: i have some 10 ports in my system.<br>
> if i use a cross cable and create a loopback among 2 ports, then,<br>
<br>
.. I read the above. You have a box with 10 network interfaces?<br>
<br>
> is their any wpcap function, which gives me list of only<br>
> loopback active ports?<br>
<br>
In any case, there isn't any WinPcap function that does this; neither finds<br>
active/listening UDP/TCP-ports nor makes a "list of all active physical ports".<br>
You have to specify your problem a bit more.<br>
<br>
If you want to find active/listening ports, then (depending on your OS) there<br>
are functions deep inside the OS for retrieving that information (like netstat<br>
does). In case you use Windows, the functions AllocateAndGetTcpExTableFromStack()<br>
and GetExtendedTcpTable() does that.<br>
<br>
--gv<br>
<br>
<br>
------------------------------<br>
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</blockquote></div><br></div>