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Trying to get back on the ball towards my certification... Thanks for any
help you guys can offer.

Why can a DHCP scope with a starting address of 172.41.48.1 not have a 19
bit subnet mask?

Cory

"Cory Dunkle" <> wrote in message
news:yKednev4wacZg6jcRVn-...
> Trying to get back on the ball towards my certification... Thanks for any
> help you guys can offer.
>
> Why can a DHCP scope with a starting address of 172.41.48.1 not have a 19
> bit subnet mask?
>

172.41.48.1 /19 would be in the subnet 172.41.32.1 - 172.41.63.255 half of
which isn't yours.
/19 gives you 19 bits for the network, 13 bits for hosts, giving network
increments of 32.0 (2^5 * 2^
e.g. 172.41.0.0, 172.41.32.0, 172.41.64.0, 172.41.96.0, etc.
You need at least /20 (20 bits for the network, 12 bits for the host)giving
network increments of 16.0 (2^4 * 2^

If this is as clear as mud, try learntosubnet.com

"Andy Foster" <> wrote in message
news:...
> "Cory Dunkle" <> wrote in message
> news:yKednev4wacZg6jcRVn-...
> > Trying to get back on the ball towards my certification... Thanks for
any
> > help you guys can offer.
> >
> > Why can a DHCP scope with a starting address of 172.41.48.1 not have a
19
> > bit subnet mask?
> >
>
> 172.41.48.1 /19 would be in the subnet 172.41.32.1 - 172.41.63.255 half of
> which isn't yours.
> /19 gives you 19 bits for the network, 13 bits for hosts, giving network
> increments of 32.0 (2^5 * 2^
> e.g. 172.41.0.0, 172.41.32.0, 172.41.64.0, 172.41.96.0, etc.
> You need at least /20 (20 bits for the network, 12 bits for the
host)giving
> network increments of 16.0 (2^4 * 2^
>
> If this is as clear as mud, try learntosubnet.com

Thanks Andy. I can't believe I didn't see that myself. I must be getting too
tired... I think I'm gonna play some Doom 3 and go to sleep!

Cory

"Andy Foster" <> wrote in message
news:...
>
> 172.41.48.1 /19 would be in the subnet 172.41.32.1 - 172.41.63.255 half of
> which isn't yours.
> /19 gives you 19 bits for the network, 13 bits for hosts, giving network
> increments of 32.0 (2^5 * 2^
> e.g. 172.41.0.0, 172.41.32.0, 172.41.64.0, 172.41.96.0, etc.
> You need at least /20 (20 bits for the network, 12 bits for the
host)giving
> network increments of 16.0 (2^4 * 2^
>
> If this is as clear as mud, try learntosubnet.com
>
>

I have to say www.learntosubnet.com is a great site! Thanks for posting this
link.

I have my 70-215 exam next week and I hope to be taking 70-218 & 70-214
soon, and subnetting is the one topic I'm finding difficult to master.
However I'm going through the videos on that site, and its a great help.
Very easy to understand!

Thanks

Ben

i say forget subnetting altogether and just play doom!

"Cory Dunkle" <> wrote in message
news:i8qdnR5dbarzr6jcRVn-...
> "Andy Foster" <> wrote in message
> news:...
> > "Cory Dunkle" <> wrote in message
> > news:yKednev4wacZg6jcRVn-...
> > > Trying to get back on the ball towards my certification... Thanks for
> any
> > > help you guys can offer.
> > >
> > > Why can a DHCP scope with a starting address of 172.41.48.1 not have a
> 19
> > > bit subnet mask?
> > >
> >
> > 172.41.48.1 /19 would be in the subnet 172.41.32.1 - 172.41.63.255 half
of
> > which isn't yours.
> > /19 gives you 19 bits for the network, 13 bits for hosts, giving network
> > increments of 32.0 (2^5 * 2^
> > e.g. 172.41.0.0, 172.41.32.0, 172.41.64.0, 172.41.96.0, etc.
> > You need at least /20 (20 bits for the network, 12 bits for the
> host)giving
> > network increments of 16.0 (2^4 * 2^
> >
> > If this is as clear as mud, try learntosubnet.com
>
> Thanks Andy. I can't believe I didn't see that myself. I must be getting
too
> tired... I think I'm gonna play some Doom 3 and go to sleep!
>
> Cory
>
>

babbling on and on again "Consultant" <> spewed
in news::

> i say forget subnetting altogether and just play doom!

high scores are so impressive one resumes

--
Neil MCNGP #30
the "curious" hair on the soap of society

totally dood

"Neil" <> wrote in message
news:Xns9557ADE7E79F9neilmcsehotmailcom@207.46.248 .16...
> babbling on and on again "Consultant" <> spewed
> in news::
>
> > i say forget subnetting altogether and just play doom!
>
> high scores are so impressive one resumes
>
> --
> Neil MCNGP #30
> the "curious" hair on the soap of society

babbling on and on again "Consultant" <> spewed
in news:#:

>
> totally dood

so like I have top standing on UT and like am in 4th with my team for
capture the flag and we are like going to fragapalooza this year and like
should ROCK there...

--
Neil MCNGP #30
the "curious" hair on the soap of society

awesome! im more of a tribes player though

"Neil" <> wrote in message
news:Xns9557D71956D8Eneilmcsehotmailcom@207.46.248 .16...
> babbling on and on again "Consultant" <> spewed
> in news:#:
>
> >
> > totally dood
>
> so like I have top standing on UT and like am in 4th with my team for
> capture the flag and we are like going to fragapalooza this year and like
> should ROCK there...
>
> --
> Neil MCNGP #30
> the "curious" hair on the soap of society