IP Address

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  • MMA
    #1

    IP Address

    Hi All,

    How do I get the source IP of a packet, not knowing if NAT has taken place.

    Thanks In Advance

    Tags: None
    • Vadym Stetsyak
      #2
      Re: IP Address

      Hello, MMA!

      Socket.RemoteEn dpoint gives the source address of the received packet.

      You wrote on Fri, 20 Oct 2006 06:31:02 -0700:

      MHow do I get the source IP of a packet, not knowing if NAT has taken
      Mplace.

      MThanks In Advance


      --
      With best regards, Vadym Stetsyak.
      Blog: http://vadmyst.blogspot.com


        Comment

        • Dave Sexton
          #3
          Re: IP Address

          Hi,

          But won't RemoteEndpoint only give the address of a router and not the LAN IP
          of the source machine? (which I suspect MMA is after)

          If I'm correct, then maybe knowing why you want the source IP would be useful.
          You might get a more appropriate response if you let us know.

          --
          Dave Sexton

          "Vadym Stetsyak" <vadym_s@ukr.ne twrote in message
          news:uRinqcI9GH A.5092@TK2MSFTN GP04.phx.gbl...
          Hello, MMA!
          >
          Socket.RemoteEn dpoint gives the source address of the received packet.
          >
          You wrote on Fri, 20 Oct 2006 06:31:02 -0700:
          >
          MHow do I get the source IP of a packet, not knowing if NAT has taken
          Mplace.
          >
          MThanks In Advance
          >
          >
          --
          With best regards, Vadym Stetsyak.
          Blog: http://vadmyst.blogspot.com
          >

            Comment

            • Vadym Stetsyak
              #4
              Re: IP Address

              Hello, Dave!

              DSBut won't RemoteEndpoint only give the address of a router and not
              DSthe LAN IP
              DSof the source machine? (which I suspect MMA is after)

              AFAIK no. When you're connecting to the remote host, you do not
              know if there is any router out there ( or if there is route to this
              machine ).

              you can open microsoft.com, and then use "netstat -an -p tcp" command,
              you'll observe that you're connected to MS endpoint and not the router.

              DSIf I'm correct, then maybe knowing why you want the source IP would
              DSbe useful.
              DSYou might get a more appropriate response if you let us know.

              DS--
              DSDave Sexton

              DS"Vadym Stetsyak" <vadym_s@ukr.ne twrote in message
              DSnews:uRinqcI9 GHA.5092@TK2MSF TNGP04.phx.gbl. ..
              >Hello, MMA!
              >Socket.RemoteE ndpoint gives the source address of the received packet.
              >You wrote on Fri, 20 Oct 2006 06:31:02 -0700:
              >MHow do I get the source IP of a packet, not knowing if NAT has
              >taken
              >Mplace.
              >MThanks In Advance
              --
              With best regards, Vadym Stetsyak.
              Blog: http://vadmyst.blogspot.com


                Comment

                • Dave Sexton
                  #5
                  Re: IP Address

                  Hi Vadym,

                  I wasn't clear in my response. I was referring to a "remote" router, not
                  local NAT.

                  I believe I just took the OP's question too literally. I guess "NAT" means
                  "local NAT" in the OP :)

                  Thanks for the reply.

                  --
                  Dave Sexton

                  "Vadym Stetsyak" <vadym_s@ukr.ne twrote in message
                  news:ukKj5nS9GH A.568@TK2MSFTNG P05.phx.gbl...
                  Hello, Dave!
                  >
                  DSBut won't RemoteEndpoint only give the address of a router and not
                  DSthe LAN IP
                  DSof the source machine? (which I suspect MMA is after)
                  >
                  AFAIK no. When you're connecting to the remote host, you do not
                  know if there is any router out there ( or if there is route to this
                  machine ).
                  >
                  you can open microsoft.com, and then use "netstat -an -p tcp" command,
                  you'll observe that you're connected to MS endpoint and not the router.
                  >
                  DSIf I'm correct, then maybe knowing why you want the source IP would
                  DSbe useful.
                  DSYou might get a more appropriate response if you let us know.
                  >
                  DS--
                  DSDave Sexton
                  >
                  DS"Vadym Stetsyak" <vadym_s@ukr.ne twrote in message
                  DSnews:uRinqcI9 GHA.5092@TK2MSF TNGP04.phx.gbl. ..
                  >>Hello, MMA!
                  >
                  >>Socket.Remote Endpoint gives the source address of the received packet.
                  >
                  >>You wrote on Fri, 20 Oct 2006 06:31:02 -0700:
                  >
                  >>MHow do I get the source IP of a packet, not knowing if NAT has
                  >>taken
                  >>Mplace.
                  >
                  >>MThanks In Advance
                  >
                  --
                  With best regards, Vadym Stetsyak.
                  Blog: http://vadmyst.blogspot.com
                  >

                    Comment

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