My pleasure.
Now that you have a handle on the subnetting business, take a look at this
thread and see if you can tell this guy what is wrong with his setup, and
why he cannot ping the 10.1.1.1 address.
Thread: Frame relay ppoint vs. multi:
What's difference? Why can you not ping my own multipoint interface but
if it is a point to point is does work? See below
interface Serial1
no ip address
encapsulation frame-relay
!
interface Serial1.1 multipoint
ip address 10.1.1.1 255.255.255.252
frame-relay interface-dlci 110
!
router igrp 10
network 10.0.0.0
1
commserver#ping 10.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------------------=
------------------------------
interface Serial0
no ip address
encapsulation frame-relay
no fair-queue
!
interface Serial0.1 point-to-point
ip address 10.1.1.1 255.255.255.252
frame-relay interface-dlci 110 =20
!
interface Serial1
no ip address
encapsulation frame-relay
shutdown
!
router igrp 10
network 10.0.0.0
!
=20
commserver#ping 10.1.1.1
=20
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max =3D =
112/116/128
ms
----- Original Message -----
From: Han-Song Kim <[EMAIL PROTECTED]>
To: 'Groupstudy' <[EMAIL PROTECTED]>
Sent: Sunday, February 04, 2001 2:25 AM
Subject: RE: Subnet questions
> Thank you bunch for helping me realize my mistakes!! :)
>
> regards,
> Han-Song
>
>
>
> -----Original Message-----
> From: Groupstudy [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, February 04, 2001 1:48 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Subnet questions
>
>
> You are exactly right. Well done.
>
> ----- Original Message -----
> From: Han-Song Kim <[EMAIL PROTECTED]>
> To: 'Groupstudy' <[EMAIL PROTECTED]>
> Sent: Sunday, February 04, 2001 1:38 AM
> Subject: RE: Subnet questions
>
>
> > Ok, I looked into the resources that you've referred to, and put a
little
> > more thought into this question. I think I can see why the answer could
> be
> > C on this problem, which makes this question a little tricky.
> >
> > If you could bare with me, let me just go through my logic and you can
> just
> > tell me if I'm on the right track or not.
> >
> > So, we're given the networks,
> >
> > 192.168.9.0 (192.168.0000 1001.0000 0000)
> > 192.168.10.0 (192.168.0000 1010.0000 0000)
> > 192.168.11.0 (192.168.0000 1011.0000 0000) and
> > 192.168.12.0 (192.168.0000 1100.0000 0000).
> >
> > Keeping in mind that the question asks for the "best" summarization...
> since
> > 192.168.8.0/21 would include additional networks not mentioned in the
> > problem (i.e. 192.168.13.0, 192.168.14.0, etc.), I can see how this
might
> > not be the best answer.
> >
> > 192.168.9.0/22, on the other hand, is the "best" summarization for the
> first
> > three networks. The last network has no other networks to be summarized
> > with, therefore can be left out of the summarization.
> >
> > Is this the right reasoning for the correct answer being C?
> >
> >
> >
> > Regards,
> >
> > Han-Song Kim
> > Network Engineer, CCNP/ MCSE/ MCDBA
> > Planetary Networks
> > (W)408.745.3065 (C)408.910.7907
> > [EMAIL PROTECTED]
> >
> >
> >
> >
> > -----Original Message-----
> > From: Groupstudy [mailto:[EMAIL PROTECTED]]
> > Sent: Saturday, February 03, 2001 11:51 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Subnet questions
> >
> >
> > I don't want to explain, it will take me too long. There have been a
> number
> > of threads regarding subnet addressing lately and they had some good
> > examples to examine. Search the archives.
> >
> > Be patient, learning to subnet and summarize off the top of your head
> > requires some time and practice. The best way to learn is to just sit
> down
> > and play with binary.
> >
> > Take a look at the following URL's for complete discussions on this
topic.
> > I think you will get what you need from them:
> >
> > http://www.cisco.com/univercd/cc/td/doc/cisintwk/idg4/nd20a.htm
> >
> > http://www.3com.com/nsc/501302.html
> >
> >
> > ----- Original Message -----
> > From: Han-Song Kim <[EMAIL PROTECTED]>
> > To: 'Groupstudy' <[EMAIL PROTECTED]>
> > Sent: Saturday, February 03, 2001 8:10 PM
> > Subject: RE: Subnet questions
> >
> >
> > > Sorry about the previous response. I thought you're responding back
to
> my
> > > earlier e-mail. Still, why is the answer to Q3 C, not D?
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Groupstudy [mailto:[EMAIL PROTECTED]]
> > > Sent: Saturday, February 03, 2001 7:31 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Subnet questions
> > >
> > >
> > > B is the correct answer.
> > >
> > > ----- Original Message -----
> > > From: Andy <[EMAIL PROTECTED]>
> > > To: Hunt Lee <[EMAIL PROTECTED]>
> > > Cc: <[EMAIL PROTECTED]>
> > > Sent: Saturday, February 03, 2001 9:40 AM
> > > Subject: Re: Subnet questions
> > >
> > >
> > > >
> > > >
> > > > On Sun, 4 Feb 2001, Hunt Lee wrote:
> > > >
> > > > > I have three subnet / route summarization questions but I don't
> > > > > understand the answer, any help would be greatly appreciated.
> > > > >
> > > > > Q1) Choose the appropriate classless network address and broadcast
> > > > > address for the IP address 10.6.38.50 with a subnet mask of
> > > > > 255.255.240.0
> > > > >
> > > > > A) 10.6.38.49 and 10.6.38.62
> > > > >
> > > > > B) 10.6.32.0 and 10.6.47.255
> > > > >
> > > > > C) 10.6.38.0 and 10.6.38.255
> > > > >
> > > > > D) 10.0.0.0 and 10.255.255.255
> > > > >
> > > > > Answer is B.
> > > >
> > > > No its not. The answer is 10.6.38.48 and 10.6.38.63. It probably
meant
> > to
> > > > say classful.
> > > >
> > > > > Q2) Given a classless route summarization of 72.8.0.0 /13. Which
IP
> > > > > address fall into this scope?
> > > > >
> > > > > A) 72.15.36.8
> > > > >
> > > > > B) 72.13.1.1
> > > > >
> > > > > C) 72.8.20.10
> > > > >
> > > > > D) 72.7.200.100
> > > > >
> > > > > E) 72.16.7.4
> > > > >
> > > > > F) 72.40.1.8
> > > > >
> > > > > Answer is A, B & C - why isn't E the ansewr as well?
> > > >
> > > > The range of 72.8.0.0/13 is 72.8.0.0 - 72.15.255.255. Its 8 Class
B's.
> > > >
> > > > > Q3) When using classless supernetting, which route best summarizes
> > > > > the following networks?
> > > > >
> > > > > 192.168.9.0
> > > > > 192.168.10.0
> > > > > 192.168.11.0
> > > > > 192.168.12.0
> > > > >
> > > > > A) 192.168.0.9 / 20
> > > > >
> > > > > B) 192.168.0.0 / 16
> > > > >
> > > > > C) 192.168.9.0 / 22
> > > > >
> > > > > D) 192.168.8.0 / 21
> > > > >
> > > > > I thought D is the answer, but the answer is C.
> > > >
> > > > A /22 is 4 Class C's, a /21 is 8. I recommand finding or making (to
> > > > actually learn it) a subnet table and just keeping referencing it
> until
> > > > you don't need to anymore.
> > > >
> > > > andy
> > > >
> > > > _________________________________
> > > > FAQ, list archives, and subscription info:
> > > http://www.groupstudy.com/list/cisco.html
> > > > Report misconduct and Nondisclosure violations to
[EMAIL PROTECTED]
> > > >
> > >
> > > _________________________________
> > > FAQ, list archives, and subscription info:
> > > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> >
> > _________________________________
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>
> _________________________________
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>
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