Hi there, How i can change my Ip Address.

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  • May 15, 2016 at 11:27 am #9283
    alexios
    Participant

      i havethe follow code in delphi

      i want to change my sourceip address.
      I dont want to get response back just to sent the tcp packet.
      i try
      pIPHeader.SourceIp:=inet_addr(‘xx.xx.xx.xx’);

      but i think need more like recalculation of piHeader values.

      any help?

      May 16, 2016 at 2:42 pm #9285
      Vadim Smirnov
      Keymaster

        Yes, besides changing the IP address you have to recalculate packet checksums. You can find some C++ sample code in the Internet Gateway. When doing NAT it changes source IP address and recalculates checksums.

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