My laptop as a router/modem



  • Hi friends.

    Suppose my system (192.168.1.100) is in a LAN. In the LAN there are 2 other systems (192.168.1.101 as a system & 192.168.1.1 as a modem).

    In my project, I need to route the packet between 192.168.1.101 & 192.168.1.1. Note that I can receive packets that there destinations are 192.168.1.101 or 192.168.1.1.

    How to do?
    Is there any registry value or sth like this to do?

    Thanks a lot.
    Ya Ali.



  • A LAN with three devices on those addresses would typically have a network mask that permitted 192.168.1.1 and 192.168.1.101 to talk to each other directly: no routing required. Unless you have an atypical network and your system is multi-homed, i.e. multiple network interfaces on different networks, then it will not be a router.

    What exactly are you trying to do? Why does it have anything to do with Qt?



  • Hello dear ChrisW67.
    Thanks for your response.

    I have a project. In this project, I must be a Man In The Middle!
    I can receive the packet that destined to 192.168.1.1 or 192.168.1.101.

    In other words, I want to create an application like as cain & abel using Qt.



  • Hi, you use the same technique that Cain and Abel does on your LAN (or viruses for Xbox or PC do) it's called "ARP Spoofing":http://en.wikipedia.org/wiki/ARP_spoofing



  • Hi dear hskoglund.
    Yes. I can receive packets from 192.168.1.1 that is destined to 192.168.1.101 & vice versa. But I dont know how to roue this packets that everything appears normal for 2 victim systems.
    (Excuse my English writing is not good)


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