Does anyone see this as an Error on page 9-17 of MSPress "70-291"?

Discussion in 'MCSE' started by ISApose, Jan 6, 2009.

  1. ISApose

    ISApose Guest

    Hello, please open your 70-291 MS Press book to page 9-17 and under
    "Gateway", the following paragraph describes that "the basic concept to
    understand for the gateway value is that this address should be distinct from
    that of the network destination listed in the same routing table entry..."

    Then it gives an example: "For example, in Figure 9-13, the sixth entry
    provides directions to the 207.46.252.0/24 destination..."

    However, the sixth entry in figure 9-13 looks to me to be pointing to the
    192.168.1.255/24 destination!!

    Am I reading this wrong?? Can anyone make any sense of this example and
    help me out here? I <i>thought</i> I knew routing tables a little better...
    and now I am concerned =\
     
    ISApose, Jan 6, 2009
    #1
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  2. ISApose

    ISApose Guest

    Hello again, same poster here: I do see that the 7th through 9th are
    pointing to three distinct host routes (207.46.252.3/32, 207.46.252.88/32,
    and 207.46.252.255/32)... but I don't see one entry in the routing table that
    points to 207.46.252.0/24!! Am I reading this all wrong??

    I should be rock solid in this, but now I feel like a dummy!! :)

    anyway... the "Gateway" section in 9-17 is really confusing to me. Anyone
    have a better source to explain this concept?
     
    ISApose, Jan 6, 2009
    #2
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  3. The sixth entry (not including the default route entry). :)

    The 207.46.252.0/24 entry is the next line.

    Also note, in the 1st edition of the book, (perhaps this is corrected in the
    second edition), the routing table entry is incorrect -- it's indicated as
    host entry (for the gateway host), not a network entry.

    Network Destination Netmask Gateway
    Interface
    207.46.252.3 255.255.255.255 207.46.252.88 207.46.252.88

    The above entry should be:

    Network Destination Netmask Gateway
    Interface
    207.46.252.0 255.255.255.0 207.46.252.88
    207.46.252.88





    --
    Lawrence Garvin, M.S., MCITP(x2), MCTS(x5), MCP(x7), MCBMSP
    Principal/CTO, Onsite Technology Solutions, Houston, Texas
    Microsoft MVP - Software Distribution (2005-2009)

    MS WSUS Website: http://www.microsoft.com/wsus
    My Websites: http://www.onsitechsolutions.com;
    http://wsusinfo.onsitechsolutions.com
    My MVP Profile: http://mvp.support.microsoft.com/profile/Lawrence.Garvin
     
    Lawrence Garvin \(MVP\), Jan 6, 2009
    #3
  4. ISApose

    ISApose Guest

    Thanks again Lawrence. You have been a great help to my studies.

    I have the 2nd edition of the book and the 6th entry (not incl. the def
    route) is indeed wrong if I am reading your post right.

    It is:
    Net. Dest. Mask
    207.46.252.3 255.255.255.255
     
    ISApose, Jan 7, 2009
    #4
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