Comments on: Configure NAT – GNS3 Lab

By: asaf

asaf — Thu, 09 Apr 2015 20:21:57 +0000

thanx a lot for this tutorial. it’s very clear and well elaborated.

By: Hassab

Hassab — Sat, 28 Mar 2015 19:49:47 +0000

Hi,
can some one send me latest dumps on my email rajahassan76@yahoo.com

By: sopdestiny

sopdestiny — Thu, 18 Sep 2014 23:17:45 +0000

lol why does everyone keep asking for the latest dumps to be sent to their email??
Thanks for the NAT/PAT info

By: jingga08

jingga08 — Tue, 08 Jul 2014 13:46:15 +0000

thanks it works… :)

By: Rekha

Rekha — Mon, 07 Jul 2014 06:49:10 +0000

HI can u pls send me the latest dumps to rekha.karthickms@gmail.com?

By: Kay

Kay — Mon, 19 May 2014 15:51:42 +0000

Hello taking ccna in end of June, can some one send me the current dump to karimnasa@yahoo.com

By: K NITHIN KUMAR

K NITHIN KUMAR — Sun, 11 May 2014 16:41:08 +0000

Good explanation,easy to understand.
thank you…………..

By: Svetlana

Svetlana — Wed, 11 Dec 2013 11:24:01 +0000

Thanks a lot. An excellent example for bigginers.

By: flake

flake — Wed, 19 Jun 2013 03:45:06 +0000

can you assign the outside local (200.23.123.6) in a different subnet with the outgoing interface 0/0 (200.0.0.1)? How would that work?

By: hojjat

hojjat — Tue, 04 Jun 2013 16:27:57 +0000

very nice thank you

By: Anonymous

Anonymous — Thu, 23 May 2013 09:10:50 +0000

Hello taking ccna on 4 june 13 can some one send me the current dump to mcfaddei@yahoo.com

By: martamob

martamob — Fri, 10 May 2013 02:44:41 +0000

great job explaining NAT/PAT

By: maroko9

maroko9 — Fri, 26 Apr 2013 08:59:36 +0000

hello, please how can I open or use those .cfg configuration files please ?
thx

By: Musthafa...

Musthafa... — Wed, 17 Apr 2013 05:03:44 +0000

9tut is the best destination to study..

By: Dana

Dana — Tue, 16 Apr 2013 20:11:53 +0000

Hello everyone! I’m planning on taking my CCNA exam at the end of the month. Can anyone please send me clear notes dump to dhonbo@gmail.com. Thank you in advance!

By: sarapi

sarapi — Mon, 15 Apr 2013 15:22:29 +0000

hello guys.i want to sit for ccna exam but i dont have a clear notes where i should revise from.any body with clear notes dump to sarapimt@gmail.com. God bless you

By: Anonymous

Anonymous — Tue, 26 Mar 2013 16:04:11 +0000

what is a loopback????

By: Rapunzel

Rapunzel — Tue, 12 Mar 2013 06:48:37 +0000

then you only have to apply ip nat inside/outside on the interfaces!

that’s itt

cheers ;)

By: Rapunzel

Rapunzel — Tue, 12 Mar 2013 06:47:34 +0000

hi Jeannot!

* here’s an example of Dynamic NAT configuration/overload

RouterA(config)# access-list 1 permit 192.168.0.0 0.0.0.255
RouterA(config)# ip nat pool PoolforNAT 200.23.123.6 200.23.123.10 netmask 255.255.255.0
RouterA(config)# ip nat inside source list 1 pool PoolforNAT overload

By: Rapunzel

Rapunzel — Tue, 12 Mar 2013 06:43:48 +0000

this post has just made my day!! it clears all the confusions were there in my head!!

thanks a bunch!!

By: Jeannot

Jeannot — Tue, 05 Mar 2013 12:11:09 +0000

need an example of configuration of nat overload

By: Marvin

Marvin — Tue, 26 Feb 2013 07:03:08 +0000

Can you please send me the latest dums on this email add: mbmallabo23@gmail.com
thanks in advance.

By: guest

guest — Fri, 15 Feb 2013 03:32:31 +0000

here naga is pool name…

By: guest

guest — Fri, 15 Feb 2013 03:31:45 +0000

i tried every other option availble but no success… it gives an error like “% Pool naga is not a rotary-type pool, unexpected behavior may result.” please guide me through…..

By: guest

guest — Fri, 15 Feb 2013 03:29:18 +0000

guys….. can anyone tell me if we an change destination address through natting… if so can someone paste commands here….

By: Omeiza

Omeiza — Thu, 22 Nov 2012 19:13:14 +0000

Wat is wrong wit some guys?why do u request for dumps.go nd do it wit ur brain nd see ur level.dumps is a bad tin.who force d exam on u.i pity u guys.

By: tshons

tshons — Wed, 14 Nov 2012 14:06:16 +0000

hello friends can you assist by sending the latest dumps on tshons@gmx.com

By: Yacoub

Yacoub — Sat, 10 Nov 2012 09:52:38 +0000

hi Friends, I am giving my exams after a week. Can you help me out with the latest dumbs, please. yacoub9308@gmail.com

By: networkfreshman

networkfreshman — Fri, 02 Nov 2012 16:03:31 +0000

if it does it can reach 200.0.0.10 network via default gateway anyway, so what is the point of NAT?

By: networkfreshman

networkfreshman — Fri, 02 Nov 2012 15:58:36 +0000

Hi, this is probably a dump question but does the loopback need to have a default gateway address?

By: ruban

ruban — Thu, 04 Oct 2012 21:47:26 +0000

For the PAT configuration is necesary a pool for public address??

By: amr

amr — Wed, 19 Sep 2012 02:45:23 +0000

hello 9tut can u tell me where this 192.168.0.0 0.0.0.255 come from?! (in access list dynamic nat configuration)

By: kunle

kunle — Sun, 16 Sep 2012 11:14:30 +0000

Please someone send me the latest ccna dumps…

Email: kunsoil@yahoo.com

By: Vadym

Vadym — Fri, 14 Sep 2012 05:36:17 +0000

I think your PAT configuration is incorrect.
You never defined a pool and did not specify the pool for public addressed you will be using when doing ip nat inside source list 1 POOL xxx interface xxx overload

By: Anonymous

Anonymous — Tue, 07 Aug 2012 19:40:51 +0000

can some one plezz send me the latest ICND1 dump @ fistonelv@live.com..Will highly appreciate it. Thanks

By: keshav

keshav — Mon, 30 Jul 2012 23:51:20 +0000

Is there any way to test dynamic NAT ?
Is there any way to test using multiple hosts in a network rather than loop back interface ?

By: abdul razak

abdul razak — Mon, 23 Jul 2012 09:51:20 +0000

can any pls send me yhe latest ccna dumps,,ill be taing exam in couple of days,pls as soon as possible mail: arazak313@gmail.com
thnx in advance

By: bro

bro — Sat, 14 Jul 2012 19:43:12 +0000

hi friends plz tell me :RouterA(config)# ip nat pool PoolforNAT 200.23.123.6 200.23.123.10 netmask 255.255.255.0RouterA(config)# ip nat pool PoolforNAT 200.23.123.6 200.23.123.10 netmask 255.255.255.0

i dont understand this step plz help me

By: Anonymous

Anonymous — Wed, 11 Jul 2012 21:39:03 +0000

Can someone please email me the latest CCENT 640-822 dumps. I will be taking the exam in a couple of weeks.
Thank you much
email: sandrogia@yahoo.com
Thanks,
Sandro

By: Thomas

Thomas — Wed, 04 Jul 2012 20:28:03 +0000

JIGNESH, you question is not clear but, from what I understand, you’re asking if a user or users at a company using a private ip address at int fa0/0 can launch Google.com website is the ISP has provided a public ip set up at s0/0 by an admin. Well, yes and no. Int f0/0 in the example above is a loopback network, only set up for testing. Let’s say you have a host, PC 1, connected to the Router 0 at int fa0/0. Well, the host will need an ip address as well, right? Right. Let’s say that the host ip is 10.0.0.2/8 with gateway 10.0.0.1/8, this set up will work. So host 10.0.0.2 will try to reach google.com, the request will first go to its gateway (10.0.0.1) then to the demarcation point at int s0/0 then to the outside world to bring back results. Note that other things will need to be set up like the protocol and DNS for all this to work. Hope this helps…some.

By: Thomas

Thomas — Wed, 04 Jul 2012 20:18:47 +0000

I haven’t read all comments but, just in case, be sure to use a cross-over cable in setting up the NAT-PAT lab above. :) Oh, and thanks so much for this site. It’s awesome!!!

By: Jignesh Kandoi

Jignesh Kandoi — Tue, 12 Jun 2012 07:39:37 +0000

Dear All,
pls give me answer to my query:

I am not getting concept of NAT
Say we are using int f 0/0 for private ip of a company, and int s 0/0 as public ip provided by ISP.
Now any host in company tries for google.com then its request is ultimately routed to router which is exiting our router through s 0/0 and google page is loaded.
then any way we can communicate with internet then what is requirement of NAT

By: vanitha

vanitha — Sun, 10 Jun 2012 10:13:46 +0000

tell lab configuration about static nat

By: Anonymous

Anonymous — Mon, 04 Jun 2012 02:16:16 +0000

Thank you very very much , 9 tut.

By: Anonymous

Anonymous — Fri, 01 Jun 2012 13:43:59 +0000

9tut ya i got it now thanks for your quick response…very nice lab…

cheers to 9tut

By: 9tut

9tut — Fri, 01 Jun 2012 12:13:31 +0000

@Rose: Prefix length is the number of bit “1″ in the subnet mask. For example:

RouterA(config)# ip nat pool PoolforNAT 200.23.123.6 200.23.123.10 prefix-length 24

equals to:

RouterA(config)# ip nat pool PoolforNAT 200.23.123.6 200.23.123.10 netmask 255.255.255.0

By: Rose

Rose — Fri, 01 Jun 2012 03:54:10 +0000

@9tut
Router(config)#ip nat pool pool_name start_ip end_ip { netmask netmask | prefix-length prefix-length }. what is prefix-length mean and how can i write it ?

Thanks :)

By: 9tut

9tut — Thu, 31 May 2012 22:45:04 +0000

@Anonymous: 200.0.0.1 is the IP of interface f0/0 of R0 so it can’t be used in static NAT.

By: Anonymous

Anonymous — Thu, 31 May 2012 22:30:33 +0000

nice lab understand NAT…

but one little confusion why we used 200.0.0.2 insted of 200.0.0.1 in the NAT Translation

R0(config)#ip nat inside source static 10.0.0.1 200.0.0.2

can any one clear it pls

Thanks in advance

By: bashlink

bashlink — Sat, 19 May 2012 14:53:08 +0000

Hi!!!! friends plz send me latest dums I will
be writing CCNA exam in 13 day time… so plz help,,,my mail address is bash_linky2k@yahoo.com

By: Anonymous

Anonymous — Tue, 01 May 2012 17:22:06 +0000

9tut,

I am not sure why we used 200.0.0.2 instead of 200.0.0.1 in the static NAT below:

R0(config)#ip nat inside source static 10.0.0.1 200.0.0.2

By: frank

frank — Sun, 22 Apr 2012 12:15:15 +0000

Hi!!!!!! friends plz send me latest dums I will be given CCNA exam after 13 day so plz help me at boots982000@yahoo.com

By: Josh

Josh — Fri, 30 Mar 2012 22:32:02 +0000

Everyone asking for dumps, gtfo…. this is particular lab is not the place to be posting those type of comments.

By: DO IT YOURSELF!!

DO IT YOURSELF!! — Tue, 27 Mar 2012 16:58:44 +0000

GO FIND THE DUMPS YOURSELF! There are out there…at least GO study and learn something and wasting blogging space morons!

By: hossam

hossam — Tue, 28 Feb 2012 03:08:45 +0000

Hi!!!!!! friends plz send me latest dums I will be given CCNA exam after 13 day so plz help me at hossbasha@hotmail.com

By: hossam

hossam — Tue, 28 Feb 2012 03:08:17 +0000

Hi!!!!!! friends plz send me latest dums I will be given CCNA exam after 13 day so plz help me

By: Anonymous

Anonymous — Mon, 06 Feb 2012 15:50:32 +0000

Hi!!!!!! friends plz send me latest dums I will be given CCNA exam after 15 day so plz help me

at kedir_ali@yahoo.com

By: RAJEN

RAJEN — Wed, 25 Jan 2012 19:51:25 +0000

Hi!!!!!! friends plz send me latest dums I will be given CCNA exam after 15 day so plz help me…

rajenpatel30189@gmail.com

thank u…………………….

By: UVWXYZ

UVWXYZ — Wed, 21 Dec 2011 04:36:47 +0000

Wud be thankful to u,
if some one send me latest dum, I do have CCNA exam after 3 day’s (Saturday 24th dec)…..
Thnx…….

orangenetwork2020@gmail

Thnx……..
UVWXYZ

By: ABCXYZ

ABCXYZ — Wed, 21 Dec 2011 04:36:07 +0000

Wud be thankful to u,
if some one send me latest dum, I do have CCNA exam after 3 day’s (Saturday 24th dec)…..
Thnx…….

orangenetwork2020@gmail.com

ABCXYZ

By: Izz

Izz — Fri, 16 Dec 2011 22:22:13 +0000

What about Dynamic NAT with overload?

By: Johny

Johny — Fri, 16 Dec 2011 07:24:15 +0000

I have just seen this site…. it is very good one. I am preparing for my CCNA. I will take the exams in Jan. Taking a look at the latest CCNA dumps is great, any one with it can email me at johnysozi@gmail.com
Thanks

By: j-money

j-money — Tue, 22 Nov 2011 09:54:36 +0000

Can someone please email me the latest CCNA dumps. I will be taking the exam in a December.

Thank you much

email: cjonboard2000@yahoo.com

By: MSR

MSR — Sun, 20 Nov 2011 13:41:25 +0000

please TELL me the latest CCNA dumps. I will be taking the exam in NEXT MONTH

Thank you

By: Muhammad Arshad

Muhammad Arshad — Fri, 18 Nov 2011 04:43:25 +0000

Can someone please email me the latest CCNA dumps. I will be taking the exam in a couple of weeks.

Thank you much

email: arsadh007@yahoo.com

Thanks,
-Arshad

By: reggie

reggie — Wed, 16 Nov 2011 05:25:04 +0000

Can someone please email me the latest CCNA dumps. I will be taking the exam in a couple of weeks.

Thank you much

email: akilimak@yahoo.com

Thanks,
-Reg

By: vastro

vastro — Thu, 06 Oct 2011 02:33:44 +0000

The lab is great. However, if you want to see the effect of the NAT configuration then you will need run debug ip nat on the enterprise router while you ping the loopback address from the isp. The outputs will appear as follow:

R2#ping 10.0.0.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 64/80/136 ms

R1#debug ip nat
00:16:55: NAT: s=10.0.0.1->200.0.0.2, d=200.0.0.10 [15]
00:16:55: NAT: s=10.0.0.1->200.0.0.2, d=200.0.0.10 [16]
00:16:55: NAT: s=10.0.0.1->200.0.0.2, d=200.0.0.10 [17]
00:16:55: NAT: s=10.0.0.1->200.0.0.2, d=200.0.0.10 [18]
00:16:55: NAT: s=10.0.0.1->200.0.0.2, d=200.0.0.10 [19]

Thanks for the lab

By: atut

atut — Fri, 30 Sep 2011 17:27:28 +0000

is PAT (NAT overload) configuration is the same as Dynamic NAT configuration with just a little modification of the word overload at the end statement ( ip nat inside source list pool overload) ????????????????

By: mady

mady — Sat, 06 Aug 2011 16:50:07 +0000

yes @ ReR this is correct

By: Random_Guy

Random_Guy — Tue, 12 Jul 2011 14:26:55 +0000

@ ReR
In this case, if we did not use loopback0, we would only have 2 interfaces and that would make this a poor example of NAT configuration! Loopback0 simulates a real host trying to gain access to some external resource (in this case, R2).

Hope this helps,
RG

By: ReR

ReR — Tue, 28 Jun 2011 18:15:27 +0000

why we wrote above loopback 0??wt is the adv of use??thanx n advance

By: Anonymous

Anonymous — Tue, 31 May 2011 14:00:09 +0000

I tried this Dynamic pat and the other “interface overload”one on my Packet Tracer but it is not working couldn’t use extended ping.

one more thin I used two routers like the one on the lab shown above for the Dynamic I assigned a different IP address to the two interface connected using the cross over table on /30 and I used a loopback and the loopback address is included in my sourcelist pool of address but my global address was not in the /30 range it is another address entirely.

Same for the interface overload one apart from the fact that I use /30 but overload command on the outgoing interface of the 1stRouter.
Please your help will be appreciated