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  1. #24
    A FUN TITLE asmo's Avatar
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    You have been assigned IP address 145.36.0.0/22
    You need to assign the first available host address on the first available subnet to the router's E0 interface and next available host on that subnet to the HTTP server.
    The question (and answer) are trivial - but the questions are also incorrect..

    Which addresses should you assign?
    The valid host range in that subnet is 145.36.0.1 - 145.36.3.254. So e0 is 145.36.0.1 and the server is 145.36.0.2... Easy enough


    What's the subnet?
    The subnet he already gave you - even though he mistakenly called it an IP address. 145.36.0.0/22

    Which class is it?
    Classfull routing hasn't been used in 20+ years. So the question is mu. See RFC 1519/BCP 122. When people ask that question/talk about classes I politely remind them of that and ask them when the last time they touched a network was.

    As for his answer (145.36.4.1 and 145.36.4.2). That is actually the next subnet (/22) up. So by definition his answer is incorrect. I am guessing that he is under the long mistaken belief that you cant use the zero subnet (which is totally incorrect - its just a set of bits so the zero subnet is 100% valid and used throughout the internet and has been for 30+ years).

    If you send me his contact info I would be happy to send him an email to explain why he is wrong. My company name, my title and the letters and numbers after my name usually get peoples attention I want it to.
    Last edited by asmo; 01-06-2013 at 03:20.
    What is my joy if all hands, even the unclean, can reach into it? What is my wisdom, if even the fools can dictate to me? What is my freedom, if all creatures, even the botched and impotent, are my masters? What is my life, if I am but to bow, to agree and to obey?
    -- Ayn Rand, Anthem (Chapter 11)

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