[Winpcap-users] how to find active ports

Mon Jul 4 05:43:43 PDT 2011

Thanks for the reply.

However guess, its better to restate my problem, so that i can make you
people clear about my query.

I am using some  3 NICS ( network interface cards), which together get me 10
ports.
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.

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.

But my question is , pcap_findalldevs( ), gives me list of all 10 ports i am
using,

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
which 2 ports are in loopback state among the 10 ports i am using.

or any other function is their apart from wpcap, which helps me to do this.

please help me to figure out this problem.

On Mon, Jul 4, 2011 at 12:08 PM, <winpcap-users-request at winpcap.org> wrote:

> Send Winpcap-users mailing list submissions to
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>
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Winpcap-users digest..."
>
>
> Today's Topics:
>
>   1. Re: . PacketRequest() (rajath kumara)
>   2. Re : how to find active ports (rajath kumara)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 4 Jul 2011 12:07:10 +0530
> From: rajath kumara <rajathkumara at gmail.com>
> To: winpcap-users at winpcap.org
> Subject: Re: [Winpcap-users] . PacketRequest()
> Message-ID:
>        <CANT-2GQ+d_G++Ajt_gLT0rX=dcGwx5JU1cox3tt248Fd-XnyVA at mail.gmail.com
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Thanks for the reply.
>
> However guess, its better to restate my problem, so that i can make you
> people clear about my query.
>
> I am using some  3 NICS ( network interface cards), which together get me
> 10
> ports.
> 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.
>
> 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.
>
> But my question is , pcap_findalldevs( ), gives me list of all 10 ports i
> am
> using,
>
> 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
> which 2 ports are in loopback state among the 10 ports i am using.
>
> or any other function is their apart from wpcap, which helps me to do this.
>
>
> please help me to figure out this problem.
>
>
>
>
>
> On Sat, Jul 2, 2011 at 12:30 AM, <winpcap-users-request at winpcap.org>
> wrote:
>
> > Send Winpcap-users mailing list submissions to
> >        winpcap-users at winpcap.org
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> >        https://www.winpcap.org/mailman/listinfo/winpcap-users
> > or, via email, send a message with subject or body 'help' to
> >        winpcap-users-request at winpcap.org
> >
> > You can reach the person managing the list at
> >        winpcap-users-owner at winpcap.org
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Winpcap-users digest..."
> >
> >
> > Today's Topics:
> >
> >   1. Re: PacketRequest() (geek techie)
> >   2. Re: how to find active ports (rajath kumara)
> >   3. Re: PacketRequest() (Gisle Vanem)
> >   4. Re: how to find active ports (Gisle Vanem)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Fri, 1 Jul 2011 11:22:52 +0530
> > From: geek techie <geektechgo at gmail.com>
> > To: winpcap-users at winpcap.org
> > Subject: Re: [Winpcap-users] PacketRequest()
> > Message-ID: <BANLkTinLEjMWb7e_5N4zGTnPTXciqZ=cFQ at mail.gmail.com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hello,
> >  Please help me to understand wpcap API - PacketRequest ( ).
> >
> >
> > any suggestions?
> >
> > On Thu, Jun 30, 2011 at 11:09 AM, geek techie <geektechgo at gmail.com>
> > wrote:
> >
> > > Hello,
> > >  could someone please elaborate on wpcap API - PacketRequest( ) ,
> > > regarding its functionalities and what does it do?
> > >
> > > Also is this function PacketRequest connected with NDIS-OID( object
> > > identifiers), in any way ?
> > > if so, explain how ?
> > >
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL: <
> >
> http://www.winpcap.org/pipermail/winpcap-users/attachments/20110701/e529e115/attachment-0001.html
> > >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Fri, 1 Jul 2011 17:16:27 +0530
> > From: rajath kumara <rajathkumara at gmail.com>
> > To: winpcap-users at winpcap.org
> > Subject: Re: [Winpcap-users] how to find active ports
> > Message-ID: <BANLkTikTpk=tjVbdNwyy7Vc0qq9LPK57yA at mail.gmail.com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi,
> >
> > Kindly suggest me how to proceed for the below mentioned problem.
> > your replies, will be valuable to me.
> >
> > On Thu, Jun 30, 2011 at 10:42 AM, rajath kumara <rajathkumara at gmail.com
> > >wrote:
> >
> > > Hi,
> > >
> > >  Currently I am using wpcap function to obtain list of all ports in my
> > > system.
> > >
> > > but assume i need to find only active ports in my system, for this, is
> > > their any wpcap function which will provide me
> > > list of all active ports in my system?
> > >
> > > for eg: i have some 10 ports in my system.
> > >           if i use a cross cable and create a loopback among 2 ports,
> > then,
> > > is their any wpcap function, which gives me list of only
> > >           loopback active ports?
> > >
> > >
> > > kindly suggest me.
> > >
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL: <
> >
> http://www.winpcap.org/pipermail/winpcap-users/attachments/20110701/1ccb4127/attachment-0001.html
> > >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Fri, 01 Jul 2011 14:55:08 +0200
> > From: Gisle Vanem <gvanem at broadpark.no>
> > To: WinDump <winpcap-users at winpcap.org>
> > Subject: Re: [Winpcap-users] PacketRequest()
> > Message-ID: <C0AE5B30A04E435E889740C843F77518 at broadpark.no>
> > Content-Type: text/plain; CHARSET=US-ASCII; format=flowed;
> >        reply-type=original
> >
> > "geek techie" <geektechgo at gmail.com> wrote:
> >
> > >  Please help me to understand wpcap API - PacketRequest ( ).
> >
> > the PacketRequest() function is used to send an OID (object ID number) to
> > the interface card driver. It can be used, for example, to retrieve the
> > status
> > of the error counters on the adapter, its MAC address, the list of the
> > multicast
> > groups defined on it, and so on.
> >
> > E.g. see here:
> >
> http://www.winpcap.org/docs/docs_41b5/html/struct__PACKET__OID__DATA.html
> >
> > or Google for "PacketRequest + WinPcap".
> >
> > --gv
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Fri, 01 Jul 2011 15:11:07 +0200
> > From: Gisle Vanem <gvanem at broadpark.no>
> > To: WinDump <winpcap-users at winpcap.org>
> > Subject: Re: [Winpcap-users] how to find active ports
> > Message-ID: <772EE3BDF5AF48A39F8A3738749D7FC7 at broadpark.no>
> > Content-Type: text/plain; CHARSET=US-ASCII; format=flowed;
> >        reply-type=original
> >
> > "rajath kumara" <rajathkumara at gmail.com> wrote:
> >
> > >  Currently I am using wpcap function to obtain list of all ports in my
> > > system.
> >
> > I thought you were talking about TCP/UDP-ports until ...
> >
> > > but assume i need to find only active ports in my system, for this, is
> > > their any wpcap function which will provide me
> > > list of all active ports in my system?
> > >
> > > for eg: i have some 10 ports in my system.
> > >           if i use a cross cable and create a loopback among 2 ports,
> > then,
> >
> > .. I read the above. You have a box with 10 network interfaces?
> >
> > > is their any wpcap function, which gives me list of only
> > >           loopback active ports?
> >
> > In any case, there isn't any WinPcap function that does this; neither
> finds
> > active/listening UDP/TCP-ports nor makes a "list of all active physical
> > ports".
> > You have to specify your problem a bit more.
> >
> > If you want to find active/listening ports, then (depending on your OS)
> > there
> > are functions deep inside the OS for retrieving that information (like
> > netstat
> > does). In case you use Windows, the functions
> > AllocateAndGetTcpExTableFromStack()
> > and GetExtendedTcpTable() does that.
> >
> > --gv
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Winpcap-users mailing list
> > Winpcap-users at winpcap.org
> > https://www.winpcap.org/mailman/listinfo/winpcap-users
> >
> >
> > End of Winpcap-users Digest, Vol 76, Issue 1
> > ********************************************
> >
> -------------- next part --------------
> An HTML attachment was scrubbed...
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> >
>
> ------------------------------
>
> Message: 2
> Date: Mon, 4 Jul 2011 12:08:38 +0530
> From: rajath kumara <rajathkumara at gmail.com>
> To: winpcap-users at winpcap.org
> Subject: [Winpcap-users] Re : how to find active ports
> Message-ID:
>        <CANT-2GSgobEA8LXSquVT+mBKjg9vMY=feoRhHtKNtQ9ejWM9Pw at mail.gmail.com
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Thanks for the reply.
>
> However guess, its better to restate my problem, so that i can make you
> people clear about my query.
>
> I am using some  3 NICS ( network interface cards), which together get me
> 10
> ports.
> 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.
>
> 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.
>
> But my question is , pcap_findalldevs( ), gives me list of all 10 ports i
> am
> using,
>
> 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
> which 2 ports are in loopback state among the 10 ports i am using.
>
> or any other function is their apart from wpcap, which helps me to do this.
>
>
> please help me to figure out this problem.
>
>
> On Mon, Jul 4, 2011 at 12:07 PM, rajath kumara <rajathkumara at gmail.com
> >wrote:
>
> >
> > Thanks for the reply.
> >
> > However guess, its better to restate my problem, so that i can make you
> > people clear about my query.
> >
> > I am using some  3 NICS ( network interface cards), which together get me
> > 10 ports.
> > 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.
> >
> > 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.
> >
> > But my question is , pcap_findalldevs( ), gives me list of all 10 ports i
> > am using,
> >
> > 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
> > which 2 ports are in loopback state among the 10 ports i am using.
> >
> > or any other function is their apart from wpcap, which helps me to do
> this.
> >
> >
> > please help me to figure out this problem.
> >
> >
> >
> >
> >
> > On Sat, Jul 2, 2011 at 12:30 AM, <winpcap-users-request at winpcap.org
> >wrote:
> >
> >> Send Winpcap-users mailing list submissions to
> >>        winpcap-users at winpcap.org
> >>
> >> To subscribe or unsubscribe via the World Wide Web, visit
> >>        https://www.winpcap.org/mailman/listinfo/winpcap-users
> >> or, via email, send a message with subject or body 'help' to
> >>        winpcap-users-request at winpcap.org
> >>
> >> You can reach the person managing the list at
> >>        winpcap-users-owner at winpcap.org
> >>
> >> When replying, please edit your Subject line so it is more specific
> >> than "Re: Contents of Winpcap-users digest..."
> >>
> >>
> >> Today's Topics:
> >>
> >>   1. Re: PacketRequest() (geek techie)
> >>   2. Re: how to find active ports (rajath kumara)
> >>   3. Re: PacketRequest() (Gisle Vanem)
> >>   4. Re: how to find active ports (Gisle Vanem)
> >>
> >>
> >> ----------------------------------------------------------------------
> >>
> >> Message: 1
> >> Date: Fri, 1 Jul 2011 11:22:52 +0530
> >> From: geek techie <geektechgo at gmail.com>
> >> To: winpcap-users at winpcap.org
> >> Subject: Re: [Winpcap-users] PacketRequest()
> >> Message-ID: <BANLkTinLEjMWb7e_5N4zGTnPTXciqZ=cFQ at mail.gmail.com>
> >> Content-Type: text/plain; charset="iso-8859-1"
> >>
> >> Hello,
> >>  Please help me to understand wpcap API - PacketRequest ( ).
> >>
> >>
> >> any suggestions?
> >>
> >> On Thu, Jun 30, 2011 at 11:09 AM, geek techie <geektechgo at gmail.com>
> >> wrote:
> >>
> >> > Hello,
> >> >  could someone please elaborate on wpcap API - PacketRequest( ) ,
> >> > regarding its functionalities and what does it do?
> >> >
> >> > Also is this function PacketRequest connected with NDIS-OID( object
> >> > identifiers), in any way ?
> >> > if so, explain how ?
> >> >
> >> -------------- next part --------------
> >> An HTML attachment was scrubbed...
> >> URL: <
> >>
> http://www.winpcap.org/pipermail/winpcap-users/attachments/20110701/e529e115/attachment-0001.html
> >> >
> >>
> >> ------------------------------
> >>
> >> Message: 2
> >> Date: Fri, 1 Jul 2011 17:16:27 +0530
> >> From: rajath kumara <rajathkumara at gmail.com>
> >> To: winpcap-users at winpcap.org
> >> Subject: Re: [Winpcap-users] how to find active ports
> >> Message-ID: <BANLkTikTpk=tjVbdNwyy7Vc0qq9LPK57yA at mail.gmail.com>
> >> Content-Type: text/plain; charset="iso-8859-1"
> >>
> >> Hi,
> >>
> >> Kindly suggest me how to proceed for the below mentioned problem.
> >> your replies, will be valuable to me.
> >>
> >> On Thu, Jun 30, 2011 at 10:42 AM, rajath kumara <rajathkumara at gmail.com
> >> >wrote:
> >>
> >> > Hi,
> >> >
> >> >  Currently I am using wpcap function to obtain list of all ports in my
> >> > system.
> >> >
> >> > but assume i need to find only active ports in my system, for this, is
> >> > their any wpcap function which will provide me
> >> > list of all active ports in my system?
> >> >
> >> > for eg: i have some 10 ports in my system.
> >> >           if i use a cross cable and create a loopback among 2 ports,
> >> then,
> >> > is their any wpcap function, which gives me list of only
> >> >           loopback active ports?
> >> >
> >> >
> >> > kindly suggest me.
> >> >
> >> -------------- next part --------------
> >> An HTML attachment was scrubbed...
> >> URL: <
> >>
> http://www.winpcap.org/pipermail/winpcap-users/attachments/20110701/1ccb4127/attachment-0001.html
> >> >
> >>
> >> ------------------------------
> >>
> >> Message: 3
> >> Date: Fri, 01 Jul 2011 14:55:08 +0200
> >> From: Gisle Vanem <gvanem at broadpark.no>
> >> To: WinDump <winpcap-users at winpcap.org>
> >> Subject: Re: [Winpcap-users] PacketRequest()
> >> Message-ID: <C0AE5B30A04E435E889740C843F77518 at broadpark.no>
> >> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed;
> >>        reply-type=original
> >>
> >> "geek techie" <geektechgo at gmail.com> wrote:
> >>
> >> >  Please help me to understand wpcap API - PacketRequest ( ).
> >>
> >> the PacketRequest() function is used to send an OID (object ID number)
> to
> >> the interface card driver. It can be used, for example, to retrieve the
> >> status
> >> of the error counters on the adapter, its MAC address, the list of the
> >> multicast
> >> groups defined on it, and so on.
> >>
> >> E.g. see here:
> >>
> >>
> http://www.winpcap.org/docs/docs_41b5/html/struct__PACKET__OID__DATA.html
> >>
> >> or Google for "PacketRequest + WinPcap".
> >>
> >> --gv
> >>
> >>
> >> ------------------------------
> >>
> >> Message: 4
> >> Date: Fri, 01 Jul 2011 15:11:07 +0200
> >> From: Gisle Vanem <gvanem at broadpark.no>
> >> To: WinDump <winpcap-users at winpcap.org>
> >> Subject: Re: [Winpcap-users] how to find active ports
> >> Message-ID: <772EE3BDF5AF48A39F8A3738749D7FC7 at broadpark.no>
> >> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed;
> >>        reply-type=original
> >>
> >> "rajath kumara" <rajathkumara at gmail.com> wrote:
> >>
> >> >  Currently I am using wpcap function to obtain list of all ports in my
> >> > system.
> >>
> >> I thought you were talking about TCP/UDP-ports until ...
> >>
>
            Guess you got it wrong here, because i am not talking about
TCP/UDP ports,
    what i am talking is about ports, which are present in NIC's ( network
interface cards).

> >> > but assume i need to find only active ports in my system, for this, is
> >> > their any wpcap function which will provide me
> >> > list of all active ports in my system?
> >> >
> >> > for eg: i have some 10 ports in my system.
> >> >           if i use a cross cable and create a loopback among 2 ports,
> >> then,
> >>
> >> .. I read the above. You have a box with 10 network interfaces?
> >>
> >> > is their any wpcap function, which gives me list of only
> >> >           loopback active ports?
> >>
> >> In any case, there isn't any WinPcap function that does this; neither
> >> finds
> >> active/listening UDP/TCP-ports nor makes a "list of all active physical
> >> ports".
> >> You have to specify your problem a bit more.
>

  here is a description about problem i am facing .