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Thread: Get IP Address Behind NAT

  1. #1
    Join Date
    Mar 2008
    Beans
    3
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Get IP Address Behind NAT

    i want to get IP Address of users behind NAT..(192.x.x.x)
    is it possible?

    the topology:
    wireless AP using NAT (192.x.x.x) => Local Area Network (172.x.x.x) => Internet

    thx b4,
    agrd_sn

  2. #2
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    22,730
    Distro
    Ubuntu Development Release

    Re: Get IP Address Behind NAT

    Here is a quick and dirty way to do it:
    $ fping -g 192.168.1.100 192.168.1.125
    192.168.1.108 is alive
    192.168.1.117 is alive
    192.168.1.118 is alive
    ICMP Host Unreachable from 192.168.1.108 for ICMP Echo sent to 192.168.1.100
    ICMP Host Unreachable from 192.168.1.108 for ICMP Echo sent to 192.168.1.100
    ICMP Host Unreachable from 192.168.1.108 for ICMP Echo sent to 192.168.1.100
    ICMP Host Unreachable from 192.168.1.108 for ICMP Echo
    --- snip ---
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #3
    Join Date
    Mar 2008
    Beans
    3
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Get IP Address Behind NAT

    hi chili555,

    i'll try tomorrow.
    thx.

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