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How can I find if my host supports CIDR?

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  • How can I find if my host supports CIDR?

    For routers/gateways CIDR support or not can be found by looking at the specs, which most do support.
    My question is do all hosts under
    - Windows
    - Linux/Solaris/Unix
    support CIDR?
    How can I find out of they do?

    If I had a lab I would know what kind of tests I could do to find out if CIDR is supported or not.
    Since I do not have a lab right now I would like to know a simpler way of finding if CIDR is supported in a specific PC,or not!

  • #2
    Re: How can I find if my host supports CIDR?

    IT depends on the protocol bing used. As the primary protocol today is TCP-IP v4, then yes, you should find that CIDR is possible.

    Generally, if they allow you to use a subnet mask, CIDR should be possible.

    http://en.wikipedia.org/wiki/Classle...Domain_Routing

    ISPs tend to use CIDR when allocating an external IP to its users.

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    • #3
      Re: How can I find if my host supports CIDR?

      Unless you have a router from 1985 then it supports CIDR.

      I wouldn't even look at it as a "supported feature" its just how TCP/IP works.

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      • #4
        Re: How can I find if my host supports CIDR?

        Originally posted by Virtual
        Generally, if they allow you to use a subnet mask, CIDR should be possible.
        Had a very recent WAP that I wanted to use on a 23 subnet only to find it had the A, B & C Masks were hardcoded into the setup. Was really not happy as a sub AUD$60 solution suddenly blew out to over AUD$500+ and it became nonviable.

        As intimated by Virtual, make sure the hardware will allow the appropriate subnet mask to be entered.
        1 1 was a racehorse.
        2 2 was 1 2.
        1 1 1 1 race 1 day,
        2 2 1 1 2

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