Comments on: RIP Tutorial

By: satish

satish — Thu, 21 May 2015 20:33:23 +0000

easy to understand thanks alot

By: Anonymous

Anonymous — Mon, 18 May 2015 07:33:15 +0000

It is a great explanation

By: amit

amit — Sun, 12 Apr 2015 13:52:03 +0000

great job…very much simplified explaination and a lot of helpful stuff about RIP. THANKS ! :-)

By: ramesh

ramesh — Mon, 16 Mar 2015 08:29:14 +0000

what is this……

By: Anonymous

Anonymous — Mon, 16 Mar 2015 07:59:45 +0000

samaj me nhi aa raha

By: hotspot

hotspot — Thu, 26 Feb 2015 14:43:22 +0000

thankuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu……/……………./????? dear thax alots

By: Anonymous

Anonymous — Sun, 04 Jan 2015 12:54:46 +0000

Dear all
Please anyone send a recently dump because the next week I Have the exam CCNA , my mail is aribi_walid@yahoo.fr

By: Satish Naraharasetty

Satish Naraharasetty — Wed, 26 Nov 2014 20:58:30 +0000

In loop prevention phenomenon,split horizon is one of those techniques which prevent loops.But while discussing about poison reverse,why it violates split horizon rule (since it should not route back)

Thanks in advance

searching answer for this question from a long time…still i didnt get answer :(

By: SHAH

SHAH — Fri, 21 Nov 2014 06:35:17 +0000

Great job good explain i read this topic in my ccnp course but little confused Now i clear my concept here

By: Ihsan

Ihsan — Thu, 20 Nov 2014 07:33:44 +0000

i am going to give na exam,,,,please send me updated dumps,,if any one hv,,,,,send me on this email id: ihsan_mcitp@hotmail.com

By: Ihsan

Ihsan — Thu, 20 Nov 2014 07:31:54 +0000

Good explanation

By: San

San — Fri, 07 Nov 2014 08:49:24 +0000

Great explanation

By: ISHITA

ISHITA — Tue, 04 Nov 2014 17:33:49 +0000

AWESM…….

By: Anonymous

Anonymous — Fri, 13 Jun 2014 12:06:58 +0000

grt

By: Anonymous

Anonymous — Sun, 25 May 2014 11:21:53 +0000

good explaination with diagram

By: Anonymous

Anonymous — Wed, 21 May 2014 06:17:07 +0000

thank you!

By: reza

reza — Thu, 24 Apr 2014 08:25:14 +0000

great job! thank you

By: nazah

nazah — Fri, 11 Apr 2014 05:40:55 +0000

thanx for these

By: visa

visa — Tue, 11 Mar 2014 06:26:14 +0000

very nice site for rip basics… :)

By: jilla

jilla — Mon, 27 Jan 2014 11:37:27 +0000

@9tut,
is GNS3 same as packet tracer or any difference between them ?

By: Anonymous

Anonymous — Wed, 22 Jan 2014 14:31:08 +0000

please send fully explanation of ROUTE POISONING and split horizon to
my email babancharak@gmail.com

By: pooja

pooja — Mon, 13 Jan 2014 13:47:44 +0000

pl any one explain how to config rip

By: koushik

koushik — Thu, 26 Dec 2013 18:48:31 +0000

too good and lucid… thanks

By: Ashutoshh singh

Ashutoshh singh — Thu, 19 Dec 2013 18:13:46 +0000

thanks alot …….

By: BAYAPUREDDY

BAYAPUREDDY — Wed, 11 Dec 2013 19:10:00 +0000

Thank you! it is really very good

By: Anushka

Anushka — Fri, 01 Nov 2013 02:15:30 +0000

thanking you sir. you are awesome

By: mystic

mystic — Fri, 27 Sep 2013 05:39:24 +0000

contact me for your ccna exam dumps is helpful @ 2go username keleomega tx

By: dan

dan — Sun, 22 Sep 2013 06:29:30 +0000

very good explanation,.. thanx 9tut

By: Sagar Dalvi

Sagar Dalvi — Sat, 21 Sep 2013 06:03:38 +0000

Thank your Man!!

By: Joshua

Joshua — Tue, 10 Sep 2013 03:58:39 +0000

I have a question…a very serious question but before I ask it, I need to explain why I’m even considering Computer Networking in the first place.

My dad is a certified Cisco guy…he’s somewhere above the Entry Level stage.

I am 25 years old, I’ve NEVER done Computer Networking before, NEVER been interested in it. I’ve never known what to do in life and I’ve already tried several other things that I quit.

My dad seems to believe that I can actually get an ENTRY LEVEL Cisco Network Certification WITHOUT any College education. Like I can just study at home by myself reading 9tut and whatever other online sources I can find.

Is this possible or is my dad crazy?

By: sridevi.p

sridevi.p — Tue, 03 Sep 2013 11:28:33 +0000

It is very useful to us!

By: Anonymous

Anonymous — Thu, 18 Jul 2013 18:44:37 +0000

Well explained…easy to understand

By: Pratik Paran

Pratik Paran — Tue, 25 Jun 2013 05:15:43 +0000

Can any one give me the link for IGRP tutorial

By: Ethan

Ethan — Wed, 19 Jun 2013 12:13:01 +0000

@9tut I need a tutorial about IP ROUTING PROCESS… & ya thanks for such a great tutorials

By: Ratapelua

Ratapelua — Thu, 06 Jun 2013 08:11:59 +0000

I’m so sorry , please, could you tell me which three tables include this protocol?
1) Routing table
2) ARP table ?
and the third which table ?

please, send me the answer to internetmiosolo@gmail.com

Thank you in advance.

By: abhishek

abhishek — Tue, 28 May 2013 05:13:27 +0000

Please send me the latest dumps of CCNA …Thanks in advance ,,,
abhishek.bahuguna9@gmail.com

By: malik

malik — Wed, 22 May 2013 23:43:33 +0000

can someone email me the latest dumps. Also does anyone know when the CCNA exam is changing?
shahram3272gmail.com

By: Richard

Richard — Wed, 08 May 2013 05:38:55 +0000

Hi 9tut,
I just want to clarify things about split-horizon and poison reverse. if poison reverse breaks the split horizon, it doesn’t make any sense discussing split horizon if it is already superseded. Is split horizon the default config to all routers? when do we use split horizon?
thanks!

By: TeeyaC

TeeyaC — Fri, 26 Apr 2013 21:46:33 +0000

Taking my CCNA exam June 1st.

By: Sunil Sharma

Sunil Sharma — Fri, 29 Mar 2013 16:47:25 +0000

Outstanding explanation!!!!!

By: Anonymous

Anonymous — Fri, 29 Mar 2013 16:46:09 +0000

Nice explanation!!!!!!!

By: vivek

vivek — Thu, 07 Mar 2013 13:50:19 +0000

Vast explanation in a simple way…really great!!

By: deepi

deepi — Thu, 14 Feb 2013 15:14:20 +0000

pls anyone clearly tel me about discontiguos network

By: manoj

manoj — Sat, 09 Feb 2013 18:38:56 +0000

Thanks, nice explanation of Rip

By: vas

vas — Mon, 04 Feb 2013 11:05:53 +0000

Great job, thanks so much 9nut

By: UMAR RASHEED

UMAR RASHEED — Thu, 31 Jan 2013 04:40:43 +0000

ITS REALLY REALLY GREAT AND YOU CAN SAY BEST ONE SITE…..
THANKS

By: Anonymous

Anonymous — Wed, 05 Dec 2012 17:51:18 +0000

Thanks guys

By: Mitesh

Mitesh — Sun, 18 Nov 2012 05:56:28 +0000

Thanks 9tut ,,,,simply great Explaination of RIP……..

By: ABC

ABC — Wed, 14 Nov 2012 04:27:15 +0000

Thanks for the help.

By: Bushybro

Bushybro — Sat, 13 Oct 2012 02:36:45 +0000

Awesome info, thank you 9tut. I got the premium membership for just that reason. Alot of this stuff used to go right over my head but now I’m starting to really understand. Passed ICND1 because of 9tut and I’m getting real confident about ICND2. Packet tracer is also my best friend :-)

By: alexme

alexme — Wed, 03 Oct 2012 17:43:55 +0000

“The route is poisoned (16), how can be update with a POOR metric? Or you mean a metric POOR than the metric before poisoning? What happens then if any router other than the one who performed route poisoning will send update with a better metric than “route metric before being poisoned?”

Sorry, my bad! Now I got it.

By: alexme

alexme — Wed, 03 Oct 2012 17:08:32 +0000

“Also within the hold-down timer, if an update is received from a different router than the one who performed route poisoning with an equal or poorer metric, that update is ignored.”
The route is poisoned (16), how can be update with a POOR metric? Or you mean a metric POOR than the metric before poisoning? What happens then if any router other than the one who performed route poisoning will send update with a better metric than “route metric before being poisoned”?

By: kushal arora

kushal arora — Tue, 11 Sep 2012 07:44:13 +0000

@bite
thnx buddy !! really awesome explanation …i understood now !

By: 9tut

9tut — Tue, 28 Aug 2012 07:25:31 +0000

@Tosain: You should start using GNS3 with my first tutorial: http://www.9tut.com/configure-cisco-router-passwords-gns3-lab

By: Tosain

Tosain — Tue, 28 Aug 2012 05:42:32 +0000

Please, i need help with using GNS3 as a simulator. Can anyone kindly provide detailed step by step approach to it use? Thanks.
babarindetosin@gmail.com

By: Bite

Bite — Tue, 21 Aug 2012 03:29:36 +0000

I do not know if this works or not but pls copy and paste the below link. I have explained it to the best of my knowledge Debug ip rip in PT.

http://www.yousendit.com/download/TEhYNnFFdkdEa1UwTWRVag

By: Bite

Bite — Mon, 20 Aug 2012 02:49:35 +0000

@kushal arora

Finally i understood the output.What you can do is use PT, design a network with rip and enable debug ip rip and you will be able to understand.Posting here with the diagram is very hard for me. If you know any site where i can put my network diagram pls let me knoe. If you have an email id i can send you the info

By: Bite

Bite — Sun, 19 Aug 2012 08:28:18 +0000

@9tut

Well the explanation about rip is best understood from this website without a doubt.

Just to add, when we see the output of #debug ip rip.

We will never see metric 0!!. I would advise if you make a note of it because when we try to interpret the output of debug ip rip it is really confusing.

By: kushal arora

kushal arora — Thu, 16 Aug 2012 11:55:01 +0000

@BITE same prob yaar !! i also dint understand debug ip RIP output !

By: kushal arora

kushal arora — Thu, 16 Aug 2012 11:54:02 +0000

THNX 9TUT !! ..ITS PRETTY COOL INFO. ABT RIP…!! ;) THNK UUU VERY MUCH !

By: bite

bite — Wed, 15 Aug 2012 07:41:32 +0000

@9tut can you please explain the output od debug ip rip.

I am cracking my head over some issue say….
A router R1 is connected to other two others routers R2 and R3. when I see

RIP:Build update entries

(say) 192.168.1.0 0.0.0.0 metric 1, tag 0

BUT 192.168.1.0 is directly connected why is it still saying Metric 1?????

Please explain!!! I have already wasted a day on this!!

By: bite

bite — Wed, 15 Aug 2012 07:31:03 +0000

@please explain

that means your router is connected to that network containing this ip 172.20.2.1 (depending on the subnet mask ) and serial interface other end is connected to 172.20.2.1 (not on the router you typed #sh ip route.

Serial 0 is the router interface you did ( #sh ip route.)

By: geedub

geedub — Mon, 06 Aug 2012 18:59:20 +0000

I took the exam and I had a 800 — passing 825 — this site is more like the test than others
— it was a matter of time for me — some things I am very quick at and others it takes me a while to calculate — so — practice timing yourself —- and practice packet tracers — be able to make the decision on what command to send and know the correct command — if you understand most things — just learn to speed up — you dont have time to make mistakes

By: Please Explain

Please Explain — Wed, 18 Jul 2012 01:38:31 +0000

Hi All,

Can somebody explain the Serial0 interface? Is it the interface define in 172.20.2.1? Thanks

R 172.20.1.0 [120/2] via 172.20.2.1, 00:00:04, Serial0

By: prashant

prashant — Tue, 10 Jul 2012 08:40:09 +0000

Awasome! i have never seen such a good kind of explanation!
Thanks alot!!!!!

By: @m0l

@m0l — Sat, 23 Jun 2012 11:32:45 +0000

thnk u so much

By: Shr

Shr — Wed, 06 Jun 2012 19:01:05 +0000

Thank u very much

By: Shr

Shr — Wed, 06 Jun 2012 18:59:10 +0000

Very valuable information

By: kafeel

kafeel — Tue, 05 Jun 2012 14:24:35 +0000

Dear 9TUT,

Please explain the debug ip rip output. What do the lines in output mean.

Many Thanks

By: kafeel

kafeel — Tue, 05 Jun 2012 14:17:47 +0000

Can you please post the correct answer to the following question.

How long would it take to flush the route that has been marked invalid? If all timers are at defaults.

Thanks a million

By: janypogs

janypogs — Tue, 08 May 2012 00:01:29 +0000

Dear all,

you may also want to check below site for some useful resources. Good luck to all of us!

careercert.info

By: janjo

janjo — Mon, 07 May 2012 23:59:32 +0000

@9tut

best website! thanks!

By: Jelenna

Jelenna — Sun, 29 Apr 2012 20:07:45 +0000

If some network goes down, does router start INVALID timer, and after that 180 seconds sends update with metric 15 to that network? In which situation router wait for invalid timer to declare route to network? If I understood well, if network goes down, router send immediately triggered update to inform others… So I’m confused, in which situation will it wait for invalid timer?

By: saurabh

saurabh — Mon, 02 Apr 2012 12:02:50 +0000

Thanxx…9tut

By: miribeni

miribeni — Thu, 22 Mar 2012 17:23:05 +0000

Thank you very munch for sharing.

By: 9tut

9tut — Thu, 16 Feb 2012 00:30:44 +0000

@Usmaan: Router B learned it could reach network 4 by 1 hop (via router C). So router A can’t advertise a better metric in this case. In the best situation, router A is directly connect to network 4, it still advertises to router B that it can reach via 1 hop (equal the metric advertised by C) -> the update is still ignored because an equal metric is not good enough to remove the hold-down timer.

By: Usmaan

Usmaan — Tue, 14 Feb 2012 21:11:36 +0000

Also within the hold-down timer, if an update is received from a different router than the one who performed route poisoning with an equal or poorer metric, that update is ignored. <> But if B receives an update from A informing that it can reach network by 1 (or more) hop, that update will be ignored an the hold-down timer keeps counting.

How is it not a better metric suggested by Router A to Router B ?

What i understand from this is that Poorer metric are those with Higher Hop numbers.

In that case Update from Router A should have been accepted by Router B no?

@9tut

thanks

By: ccna

ccna — Mon, 13 Feb 2012 18:55:42 +0000

@jeet
I think it’s correct.
Cisco IOS Release 12.0 Network Protocols Command Reference, Part 1
http://www.cisco.com/en/US/docs/ios/12_0/np1/command/reference/1rrip.html#wp1018019

Defaults

update is 30 seconds
invalid is 180 seconds
holddown is 180 seconds
flush is 240 seconds

By: jeet

jeet — Wed, 01 Feb 2012 20:18:32 +0000

Note: The default hold-down timer value = 180 second.

Have confusion on this, if default hold time is 180 seconds not 90 than what wud be default timeout

Is the table below incorrect–

update timer: 30 seconds
hold timer-90 seconds
time out-180
flush timer-120 seconds

By: Drei

Drei — Thu, 26 Jan 2012 17:27:50 +0000

Best explanation I’ve seen! Donated $$ and will donate more to keep the site alive!