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

 
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Old 01-06-2009, 11:57 AM   #1
Default Does anyone see this as an Error on page 9-17 of MSPress "70-291"?


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 =\




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Old 01-06-2009, 12:21 PM   #2
ISApose
 
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Default RE: Does anyone see this as an Error on page 9-17 of MSPress "70-291"?


"ISApose" wrote:

> 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 =\
>
>


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?


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Old 01-06-2009, 01:52 PM   #3
Lawrence Garvin \(MVP\)
 
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Default Re: Does anyone see this as an Error on page 9-17 of MSPress "70-291"?
"ISApose" <> wrote in message
news:45558896-4A5D-47C1-8B81-...
> 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!!


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/pro...awrence.Garvin



Lawrence Garvin \(MVP\)
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Old 01-07-2009, 12:27 PM   #4
ISApose
 
Posts: n/a
Default Re: Does anyone see this as an Error on page 9-17 of MSPress "70-2


"Lawrence Garvin (MVP)" wrote:

> "ISApose" <> wrote in message
> news:45558896-4A5D-47C1-8B81-...
> > 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!!

>
> 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/pro...awrence.Garvin
>
>

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




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