How can I get the ip address of http server's external interface?

This is a discussion on How can I get the ip address of http server's external interface? within the C Programming forums, part of the General Programming Boards category; Hi, I have a webserver (a router, to be precise, that can be accessed from internal severs, using its internal ...

  1. #1
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    How can I get the ip address of http server's external interface?

    Hi,

    I have a webserver (a router, to be precise, that can be accessed from internal severs, using its internal ip address). The router has an adsl modem connected to it, so it has two interfaces, adsl modem to the internet, and several ports to the internal clients/servers.

    Now, I would like one of the internal server to get the ip address of the router's exterenal interface. Are there any c APIs/utilities that can be used to get the external ip address of the router, using the http connection to it through its internal address.

    I am using Linux, any pointers would be highly appreciated.

    My apology in advance, if this has gone bit OT from C.

    Damar

  2. #2
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    How to get the remote-host ip address?

    Hi,

    Further to my earlier posting titled 'How can I get the ip address of http server's external interface?', I would like to add one more.

    Is there any thing like REMOTE_ADDR variable of perl in c?

    Thanks again.

    Damar

  3. #3
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    Don't know if this would work for you, but can you do it through DNS call like gethostbyname() ?
    When all else fails, read the instructions.
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