TCPmag.com online chat, Prepping for the CCNA, May 15, 2002
Host abarkl says:
Welcome to tonight's CCNA prep chat...
Host abarkl says:
Hi Gregg!
Host abarkl says:
We will discuss the finer points of preparing for the CCNA exam 640-607...
Host abarkl says:
I have some links to get us started...
Host abarkl says:
Cisco certification web site...
Host abarkl says:
http://www.cisco.com/warp/public/10/wwtraining
Host abarkl says:
Cisco Q&A certification web site...
Host abarkl says:
http://ciscocert.custhelp.com/cgi-bin/ciscocert.cfg/php/enduser/home.php
Host abarkl says:
Free Cisco exam questions and resources...
Host abarkl says:
http://certcities.com/editorial/features/story.asp?EditorialsID=26
Host abarkl says:
Great web sites with lots of free Cisco and networking technology...
Host abarkl says:
http://www.certificationzone.com/
Host abarkl says:
http://www.routeranswers.com/index.shtml
Host abarkl says:
http://routergod.com
Host abarkl says:
You have got to read the interview articles at the last site www.routergod.com...
Host abarkl says:
And the number 1 book for preparing for the CCNA exam...
Host abarkl says:
Drum roll please...
Host abarkl says:
The Sybex CCNA study guide by Todd Lammle...
Host abarkl says:
Let me find that URL again...
Host abarkl says:
Here it is...
Host abarkl says:
http://www.bookpool.com/.x/7c9j4yoo6i/sm/0782127290
Host abarkl says:
That includes the study guide and router simulator...
Host abarkl says:
All you need to be a CCNA like me! :)
Host abarkl says:
Any general Cisco certification questions from the floor before we get started?
tracyrogers says:
I cannot see the url after sm/07
tracyrogers says:
could you please repeat after that point
Host abarkl says:
Here it is in 2 parts...
Host abarkl says:
http://www.bookpool.com/.x/7c9j4yoo6i
Host abarkl says:
and /sm/0782127290
tracyrogers says:
thank you
gregg says:
A ? on frame relay- what are the main points to know? &
gregg says:
the main points for access lists?
Host abarkl says:
At the www.BookPool.com site search for ISBN 0782127290
Host abarkl says:
For the CCNA exam and Frame Relay...
Host abarkl says:
You should know how it works...
mgmeye says:
is all the 640-507 study material still relevant?
Host abarkl says:
And How to configure the basics for connectivity.
Host abarkl says:
Yes it is mgmeye...
Host abarkl says:
Have you read my recent CCNA article on the TCPMag.com web site...
Host abarkl says:
http://www.tcpmag.com/column.asp?id=EXAM&cid=152
mgmeye says:
not yet, but i will
Host abarkl says:
That is http://www.tcpmag.com/column.asp
Host abarkl says:
And ?id=EXAM&cid=152
Host abarkl says:
I did cover the question regarding existing 507 study guides...
Host abarkl says:
The CCNA 607 exam didn't change the exam objectives...
Steve I just purchased the Cisco CCNA 647-607 book, how does that compare to the Sybex
Host abarkl says:
So the 507 guides are still applicable.
Host abarkl says:
I haven't seen the new 607 study guides from Cisco Press...
Host abarkl says:
They (Cisco Press) are a client of mine but I don't get copies of all their books for free :)...
Host abarkl says:
The ICND course they used to have was good...
Host abarkl says:
I am sure that the Cisco Press 607 study guide will be ample...
Host abarkl says:
Did it include a router simulator?
rantay says:
how can I get a copy of last weeks chat?
Host abarkl says:
I can email you a copy if it's not already posted to the TCPMag.com web site.
Host abarkl says:
Whisper me your email address.
Host abarkl says:
We will cover Frame Relay again tonight Gregg...
borys says:
You recommended Lammle's router simulator, do I need the latest one?
Host abarkl says:
And you also had questions regarding Access Lists?
gregg says:
cool
gregg says:
yes
gregg says:
main things to know
Host abarkl says:
Not necessarily borys...
uncle_s says:
Don't think cd has router sims, practice questions - supposedly similar to cisco e-sim
Host abarkl says:
The router simulators haven't changed much in the last couple of years...
Host abarkl says:
The Todd Lammle book I recommended earlier includes a simulator that is just fine.
gregg says:
sybex sim is ok even tho all commands aren't supported
Host abarkl says:
Which cd uncle_s?
uncle_s says:
cd in new study guide
Host abarkl says:
I haven't seen a simulator yet that replicates a real router exactly.
Host abarkl says:
The Cisco Press study guide?
uncle_s says:
yes - odom's new book
Host abarkl says:
Does Cisco Press have a router simulator for sale?
rantay thinks: the cisco e-sim covers info that is similar to the test
uncle_s says:
300 questions in multiple formats but no sims
Host abarkl says:
I do a couple of simulators on their web site...
Host abarkl says:
www.CiscoPress.com
uncle_s says:
downloadable file from either cisco or cisco press - can't remember which site
Host abarkl says:
I think you can download a demo of Todd Lammle's full routersim from www.routersim.com
Host abarkl says:
You can also get free router and switch access at this site...
Host abarkl says:
Router rack sites...
tracyrogers says:
it is there
Host abarkl says:
http://www.r1r2.com
mgmeye says:
I know if you buy the Todd Lammle's book you can go to the routersims site and do a free up-grade.
Host abarkl says:
I believe you can mgmeye if you buy the stripped down version of the Router Sim with the book.
mgmeye says:
Yeah, you’re right
uncle_s says:
For those of us who went thru the CNAP the new CiscoPress guide is a great review. More emphasis on
theory and a new approach to subnetting.
tracyrogers says:
anything else new in it?
Host abarkl says:
The e-trainer CD or stripped down router sim is available at www.BookPool.com...
Host abarkl says:
Its ISBN is 0782127282
Host abarkl says:
I have met many CNAP students who also get the Lammle book and review that before the
exam...
Host abarkl says:
There is also the cliff notes version of the book...
Host abarkl says:
ISBN 0782126480
Host abarkl says:
Now for my questions to you...
uncle_s says:
I haven't finished it yet - but Odom has a different way to subnet without binary conversion.
Host abarkl says:
There are about 5 ways to arrive at the answer and the no math method is great.
Host abarkl says:
Frame Relay is a layer 3 technology? T/F
uncle_s says:
f
gregg says:
f
tracyrogers says:
f
mgmeye says:
False
AL says:
F
tracyrogers says:
layer 2
Steve says:
f
borys says:
false
Mike_B says:
f
rantay says:
f
Host abarkl says:
Frame Relay is a layer 2 or Data Link Wide Area Network protocol...
Host abarkl says:
When configuring Frame Relay...
Host abarkl says:
What does the DLCI value signify?
gregg says:
you get out your prayer rug
tracyrogers says:
the local layer 2 address
rantay says:
virt addr
uncle_s says:
local point of reference for pvc
Host abarkl says:
Prayer rug?
gregg says:
the network id
rantay says:
pvc addr
gregg says:
virtual network id
mgmeye says:
pvc
Host abarkl says:
Those are all good methods to help remember the purpose of the Data Link Connection
Identifier or DLCI...
Host abarkl says:
It signifies the address between the router and the Providers switch.
Host abarkl says:
Does the DLCI value have to be the same on both ends of a Frame Relay link?
uncle_s says:
no
gregg says:
no
tracyrogers says:
no
Steve says:
n
mgmeye says:
no
tracyrogers says:
it can't be
rantay says:
no
borys says:
no
Host abarkl says:
No is correct because it's the local switch and router's address but identical DLCI values can be
used if desired.
gregg says:
it can but doesn't have to be
tracyrogers says:
oh
tracyrogers says:
I thought they couldn't be
Host abarkl says:
Typically you would DLCIs to identify the Frame Link in a multi-point link configuration...
gregg says:
as in using subinterfaces?
Host abarkl says:
You could do something fancy to associate the DLCI with the subnet for troubleshooting
purposes.
Host abarkl says:
Subinterfaces would be a very useful configuration...
Host abarkl says:
Because if you have 5 links and 1 router interface, what can you do?
gregg says:
e0.16 e0.17,etc
uncle_s says:
use subinterfaces - also works for diff lmi types - s 0.1 s0.2 etc
Host abarkl says:
Or S0.16 and S0.17 most likely?
gregg says:
use subinterfaces and assign dlcis to each?
gregg says:
serial right - boing!
Host abarkl says:
Another good reason for subinterfaces uncle_s.
Host abarkl says:
Boring?
gregg says:
boing
Host abarkl says:
lol
gregg says:
no r
Host abarkl says:
What else is required to configure Frame Relay?
Host abarkl says:
Oh boing!
gregg says:
there ya go
borys says:
encapsulation
Host abarkl says:
I didn't say I could read.
gregg says:
lmi type
gregg says:
lol
rantay says:
encap lmi type
Host abarkl says:
Encapsulation type and LMI are required...
Host abarkl says:
What is the default encapsulation type for a Cisco router's serial interface?
uncle_s says:
aren't lmi assigned by FR switch?
gregg says:
hdlc
uncle_s says:
cisco
mgmeye says:
hdlc?
tracyrogers says:
hdlc
Steve says:
hdlc
Host abarkl says:
They usually are uncle_s.
uncle_s says:
hdlc
rantay says:
hdlc
tracyrogers says:
hdlc is cisco proprietary, right?
Host abarkl says:
HDLC is the default encapsulation type...
Host abarkl says:
Cisco's HDLC is Cisco proprietary...
Host abarkl says:
And doesn't work well with other vendor's HDLC.
gregg says:
doesn't every vendor have their own hdlc?
uncle_s says:
nah I was thinking lmi type still
rantay says:
yes
Host abarkl says:
You are correct uncle_s, LMIs are detected by the router from the switch.
Host abarkl says:
How about some Frame Relay configuration commands...
tracyrogers says:
frame-relay lmi-type cisco
Host abarkl says:
Which mode do I set the frame encapsulation?
uncle_s says:
shor frame-relay pvc
tracyrogers says:
config-if
Host abarkl says:
How many LMI types are available tracyrogers?
gregg says:
global config mode
tracyrogers says:
3
AL says:
4
tracyrogers says:
cisco, ietf, and one other, I think
rantay says:
3
gregg says:
2
uncle_s says:
conf t - int s1 - encapsulation frame-relay
Host abarkl says:
Correct gregg, the global config mode is usually where you configure the frame relay
encapsulation but...
Host abarkl says:
You can also configure it per sub interface with IOS 11.2 and later...
Host abarkl says:
There are 3 LMI types just like there are 3 letters in LMI...
gregg says:
which is the more accepted practice?
AL says:
keep alive,multicast and status mechanisms and global addressing are LMI types.
Host abarkl says:
It really depends upon your need gregg.
gregg says:
k
AL says:
keep alive
uncle_s says:
ansi - q933a - cisco
gregg says:
cisco,ietf,ansi
tracyrogers says:
yeah
tracyrogers says:
that's right
Host abarkl says:
It is more convenient to configure it in global mode if all links are the same.
tracyrogers says:
its ietf q933a
gregg says:
makes sense andy
gregg says:
per interface if your adding networks and such?
Host abarkl says:
The 3 LMI types are Cisco, ANSI, and Q933.
Host abarkl says:
A better solution and a great idea gregg. Things do change.
CF_CNAP_FBKS says:
ya
CF_CNAP_FBKS says:
how
Host abarkl says:
The more things change the more they remain the same?
gregg says:
understand better now
gregg says:
the only constant is change
Host abarkl says:
How about Frame Relay connections and hardware...
Host abarkl says:
The router is a given...
Host abarkl says:
The providers FR switch is a given...
rantay says:
atm switch
Host abarkl says:
What else would you find between those 2 devices?
Host abarkl says:
An ATM switch on a FR network?
Mike_B says:
csu/dsu
rantay says:
digital cross-connect switch
Host abarkl says:
A CSU/DSU is required.
rantay says:
optical cross-connect switch
Host abarkl says:
And what about the point where the providers responsibility ends and yours begins?
gregg says:
demarc
Host abarkl says:
That's some pretty expensive stuff rantay.
uncle_s says:
Sidenote - one of the guys I was in CNAP with said got questions on cabling, ie what pairs for straighthru,
crossover etc.
Host abarkl says:
The Demarc is the other connection between your router and their switch.
Host abarkl says:
Those types of questions are on the new exam uncle_s.
tracyrogers says:
your responsibility begins at the csu/dsu
rantay says:
I was thinking of a fr that ran from chgo to ny
Host abarkl says:
And the cabling graphics are poor at best...
Host abarkl says:
Also the instructions for the router simulators are small and poor resolution...
gregg says:
isdn or t1 line?
Host abarkl says:
I have heard many people complaining recently at news://alt.certification.cisco...
Host abarkl says:
Try and find a test center with 17" or larger monitors.
Host abarkl says:
Of course gregg, you have been studying.
Host abarkl says:
We better move on to access-lists...
uncle_s says:
Not necessarily tracy. If router has integrated csu/dsu that is inside the demarc still have to connect to
service
rantay says:
I wrote cisco about that problem and they ignored me
gregg says:
yes and I'm full of cisco
Host abarkl says:
How many access-lists can I have per interface per direction?
uncle_s says:
1
gregg says:
1
Host abarkl says:
I don't think they will change it now rantay.
tracyrogers says:
1
Steve says:
1
AL says:
1
rantay says:
1
Host abarkl says:
You are Mr. Cisco gregg.
gregg says:
hey Andy who taught the class?
Host abarkl says:
1 access-list per interface per direction is correct...
Host abarkl says:
I don't recall gregg.
gregg says:
lol
gregg says:
robert
Host abarkl says:
And what are the 2 steps to creating and access-list?
Host abarkl says:
Or so he thought.
tracyrogers says:
configuring the list and putting it on the interface
uncle_s says:
write list - apply to interface
gregg says:
build and apply to the interface
gregg says:
permit statement at the end
tracyrogers says:
supposing you want it
Host abarkl says:
Yes, creating the list and applying it to the interface are the 2 steps...
rantay says:
access-list, access group
Host abarkl says:
Can I add entries to an existing access-list?
tracyrogers says:
yes
tracyrogers says:
but they end up at the end of the list
gregg says:
y
rantay says:
yes
uncle_s says:
only if named
Steve says:
y
tracyrogers says:
the router processes them in the order they are listed
gregg says:
yes if named
Host abarkl says:
Yes you can and they will be added to the end just before the implicit deny all...
Host abarkl says:
Can I delete entries from a list?
tracyrogers says:
no
gregg says:
no
borys says:
n0
gregg says:
you delete the list
uncle_s says:
yes if named
rantay says:
not without destroying the entire list
tracyrogers says:
unless you use a tftp server and import your lists
uncle_s says:
if named can use no command on 1 line
Host abarkl says:
You can't delete an entry without deleting the entire list...
borys says:
yes, if you use named lists
uncle_s says:
not in standard or extended but I thought you could with named
Host abarkl says:
Named lists in IOS 12.0 do support adds and deletions without rebuild, thanks for the
clarification.
Host abarkl says:
Named access-lists are too cool.
uncle_s says:
Thats why save to notepad and cut and paste
tracyrogers says:
otherwise one mistake and you have to redo the entire list
Host abarkl says:
How can I create an access-list entry to permit all hosts on the following network 192.168.29.0/24
Host abarkl says:
Notepad is my friend.
uncle_s says:
standard list
Host abarkl says:
A standard access-list will work...
Host abarkl says:
And what would the statement read in the list?
tracyrogers says:
access-list 50 permit 192.168.29.0 0.0.0.255 any
gregg says:
access-list 10 permit 0.0.0.255
AL says:
permit any any
rantay says:
permit any host 192.168.29.0 0.0.0.255
gregg says:
access-list 10 permit any 192.168.29.0
Host abarkl says:
Did I tell you that was a prize question? :)
Host abarkl says:
tracyrogers is the winner!!!
tracyrogers says:
woohoo
CF_CNAP_FBKS says:
good job tracy what did you win
Host abarkl says:
And you have won a fine TCPMag.com ball cap.
tracyrogers says:
thank you
gregg says:
whats behind door #3?
CF_CNAP_FBKS says:
mr j will be green eyed
tracyrogers says:
yep
Host abarkl says:
And that concludes tonight's CCNA exam chat ...
Host abarkl says:
Keep studying and looking towards the sky...
AL says:
Thanks AB.
gregg says:
thanks andy
uncle_s says:
thanks andy
CF_CNAP_FBKS says:
thanks
tracyrogers says:
thank you andy
borys says:
Thanks Andy
Host abarkl says:
Because there is nothing else worth doing when it's 105 degress outside. :)
Host abarkl says:
Thank you!