Comments on: CCNA NAT SIM Question 2

By: miss sylla

miss sylla — Mon, 01 Jun 2015 06:12:41 +0000

hello @Boon Fong let me try to help you ok.
/26 means that the subnetmask is 255.255.255.192 and with this subnetmask the block size is
256-192=64 so when you look at that network range u will see that this fall into the network address of 192.168.6.64 because you will increment the first network add with 64(le block size) to get the second network address
and from this we know that the wildcard mask is block size – 1 which means 64-1 =63(wildcard mask)
i hope you will understand . thanks

By: nsk1127

nsk1127 — Sun, 31 May 2015 01:18:32 +0000

can someone please tell me that for the multiple choice questions ,if we i select only 2 out of 3 correctly . Do i lose full marks for the question or i get some amount of marks ?

By: sanjay

sanjay — Fri, 29 May 2015 09:54:49 +0000

whereis the initial config

By: Boon Fong

Boon Fong — Wed, 27 May 2015 07:41:54 +0000

access-list 1 permit 192.168.6.64 0.0.0.63 how its get 192.168.6.64? omg it confused me

By: davesupreme

davesupreme — Mon, 25 May 2015 21:45:32 +0000

password ‘cisco’ doesn’t work for ISP router?

By: Anonymous

Anonymous — Sat, 23 May 2015 00:03:08 +0000

overload is no necessary

By: JY

JY — Wed, 20 May 2015 07:37:32 +0000

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By: TNK

TNK — Mon, 18 May 2015 18:20:54 +0000

Did Anyone meet this question in the CCNA 120-220 Exam..??

By: ADNAN

ADNAN — Sat, 16 May 2015 12:45:48 +0000

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By: Felipe

Felipe — Wed, 06 May 2015 00:56:57 +0000

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By: CCNA-seeker

CCNA-seeker — Tue, 05 May 2015 19:29:24 +0000

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By: testtaker

testtaker — Tue, 05 May 2015 12:25:01 +0000

Oh no, sorry. I tried on the wrong PC> Now I get it :)

By: testtaker

testtaker — Tue, 05 May 2015 12:20:05 +0000

I son’t get something. If I open the CCNA NAT Sim question it already pings 192.0.2.114 without needing to configure anything. Also I don’t see the NAT inside and NAT outside configuration on the interfaces. Is it normal?
Apart from that I get the answer, it all makes sense.

By: Divyesh Patel

Divyesh Patel — Fri, 01 May 2015 21:04:05 +0000

After spending few hours to troubleshoot this issue, I have found that the ISP router don’t have any route for 198.18.6.64/29 network

Need to remove current static route from ISP router and add route as – 198.18.6.64/29 via 192.0.2.113

click on ISP router – (you need to configure route on GUI)
Go to Config
Go to Routing and then Static
Remove existing route and add the route for 198.18.6.64/29

It works for me….Thanks

By: korea man

korea man — Tue, 28 Apr 2015 07:41:10 +0000

These local hosts use private IP addresses in the 192.168.6.65 – 192.168.6.126/26 range.

/26 => 255.255.255.192 => wild mask 0.0.0.63

bye bye

By: Tushar Patel

Tushar Patel — Tue, 28 Apr 2015 05:17:57 +0000

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Anonymous — Mon, 20 Apr 2015 16:51:02 +0000

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By: raju.n 15/04/2015

raju.n 15/04/2015 — Thu, 16 Apr 2015 15:10:45 +0000

i passed ccna exam 1000/1000

By: veny

veny — Sun, 12 Apr 2015 14:40:45 +0000

but in practice sim the subnet mask is not provided…

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noman qureshi — Sat, 11 Apr 2015 07:24:42 +0000

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By: w1zard

w1zard — Thu, 02 Apr 2015 07:59:30 +0000

Given that the LAN on the left hand side must support 62 clients, then the /26 subnet is insufficient. The /26 subnet provides 62 valid IP addresses. 1 IP address needs to be assigned to the Router (Router1 in this case), leaving only 61 valid IP addresses for the Clients (local hosts). In this case, the subnet mask must be at least /25.
Thanks 9tut. Only 9tut.

By: Mike

Mike — Tue, 31 Mar 2015 18:43:01 +0000

I passed today with 31/03 986/1000 in London – still valid. The questions 90% from 9tut and some you can find in the other VCE file on the internet. ACL, ACL2 and EIGRP but with different names and IPs for the hosts and others. You can easily pass if you study a few times this questions from 9tut plus a little from books(very important to know about ospf, eigrp, vlans and others). I can help with any tips if somebody wants.

michael.pat86@ymail.com

Thanks 9tut and thanks God!!!

By: 9tut

9tut — Mon, 30 Mar 2015 00:31:33 +0000

@Ahmed B. Hameed: We removed that comment.

By: Ahmed B. Hameed

Ahmed B. Hameed — Sun, 29 Mar 2015 19:13:19 +0000

Dear friend my comment on “Ahmed B. Hameed March 10th, 2015″ is wrong so don’t take it attention.

9tut Administrations please can you remove is please ? the configuration answer is perfect and worked normally………

By: Jhun

Jhun — Fri, 27 Mar 2015 06:26:58 +0000

@Anonymous
Chck you int fa0/0 an s0/0 on “sh run” if its correct
fa0/0
inside

s0/0
outside

By: Ralph

Ralph — Mon, 23 Mar 2015 20:02:54 +0000

@muhamed try it with a netmask of 0.0.0.0

By: muhamed

muhamed — Tue, 17 Mar 2015 12:08:35 +0000

@ noha
i did it again and it works

By: Anonymous

Anonymous — Sat, 14 Mar 2015 14:48:02 +0000

@muhamed
I have followed your commands but nothing is pinging again !?

By: muhamed

muhamed — Sat, 14 Mar 2015 04:18:02 +0000

@ noha the attached lab has diff. ip’s so do the same commands by the ip’s given in the lab and it will work

ip nat pool mypool 198.18.184.105 198.18.184.110 netmask 255.255.255.248

access-list 1 permit 192.168.100.16 0.0.0.15

ip nat inside source list 1 pool mypool overload

int f0/0

ip nat inside

int s0/0

ip nat outside

copy run startup

ping 192.0.2.114

good luck !!!

By: noha 92

noha 92 — Thu, 12 Mar 2015 20:21:49 +0000

The lab is not working with these commands still cant ping 192.0.2.114 ???????
Anyone can help me plzz !

By: noha 92

noha 92 — Thu, 12 Mar 2015 19:59:12 +0000

The Wildcard easy to be calculated :
255.255.255.255 – 255.255.255.192(/26 SM of private range)
the result will be = 0.0.0.63

By: Alex1(255-192=63)

Alex1(255-192=63) — Thu, 12 Mar 2015 19:35:52 +0000

Rajiv

By: Alex1

Alex1 — Wed, 11 Mar 2015 22:01:46 +0000

I understand everything, except where the wildcard mask of 63 came from. Explain..?

By: Dhruti

Dhruti — Wed, 11 Mar 2015 08:47:53 +0000

I know how to do this through the router but Can someone tell me how to access the router’s CLI from the PC’s console! Will i lose marks if i don’t do it through the PC??
Can someone please guide me.

By: alex

alex — Sun, 08 Mar 2015 19:20:06 +0000

My bad, I had the answered file.

Still I don’t understand why on the unsolved version ping from weaver router to 192.0.2.114 works ? Thanks !

By: alex

alex — Sun, 08 Mar 2015 19:06:59 +0000

Hi,

Can somebody tell me please what is the password for ISP router? Cisco does not work.

I see that ping 192.0.2.114 form PC2 is used in order to test the result of the NAT config. However this ping works also before configuring the NAT so how valid is this test?
Also PC2 has IP 192.168.100.18 which is not in the range of addresses configured to be translated. Any clue?

Anny help will be appreciated.

By: jay

jay — Sun, 08 Mar 2015 06:36:46 +0000

is this included in exam?

By: sean

sean — Tue, 24 Feb 2015 13:36:01 +0000

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By: Anonymous

Anonymous — Sun, 22 Feb 2015 19:11:47 +0000

how is this host address summarized with this command…
access-list 1 permit 192.168.6.64 0.0.0.63
iam confused regarding the wildcard mask covering all the hosts..

By: manos

manos — Sat, 21 Feb 2015 14:19:47 +0000

Ok guys, no need to answer me.. it has been already answered :) my bad.

By: manos

manos — Sat, 21 Feb 2015 14:17:05 +0000

Guys the overload command is not necessary to use it here, am I right?

By: bash

bash — Fri, 13 Feb 2015 16:12:04 +0000

can some body help me how comes the subnet mask 0.0.0.15 in

access-list 10 permit 192.168.100.17 0.0.0.15

By: Moha

Moha — Thu, 12 Feb 2015 21:54:03 +0000

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By: Mark

Mark — Thu, 12 Feb 2015 21:42:25 +0000

Hi Guys i can see the confusion, the Ip address scheme which is listed above does not match the Ip addressing scheme on the router. Don’t use the address scheme 198.18.32.65 – 198.18.32.70.
Below is the config you’ll use in the exam. Please use the CCNA_NAT_SIM (Not Answered) for this lab and configure it with the IP addressing Scheme below, I THINK THIS IS WERE THE CONFUSION IS GUYS.
HOPE THIS STOPS THE CONFUSION
YOUR PINGS WILL BE SUCCESSFUL

Weaver#sh run
Building configuration…

Current configuration : 867 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Weaver

enable password cisco

ip cef
no ipv6 cef

ip ssh version 1

interface FastEthernet0/0
ip address 192.168.100.30 255.255.255.240
ip nat inside
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0
ip address 192.0.2.113 255.255.255.0
encapsulation frame-relay
ip nat outside
clock rate 2000000
!
ip nat pool mypool 198.18.184.105 198.18.184.110 netmask 255.255.255.248
ip nat inside source list 1 pool mypool overload
ip classless
!
ip flow-export version 9
!
!
access-list 1 permit 192.168.100.16 0.0.0.15
!
line con 0
password cisco
login
!
line aux 0
!
line vty 0 4
login
!
!
!
end

By: Mark

Mark — Thu, 12 Feb 2015 20:58:18 +0000

Thats the config you gave in the lab but i still can’t ping from 192.168.100.17 – 192.0.2.114

By: Anonymous

Anonymous — Thu, 12 Feb 2015 20:56:57 +0000

Weaver#sh run
Building configuration…

Current configuration : 944 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Weaver
!
!
!
enable password cisco
!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
ip ssh version 1
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.100.30 255.255.255.240
ip nat inside
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0
ip address 192.0.2.113 255.255.255.0
encapsulation frame-relay
ip nat outside
clock rate 2000000
!
ip nat pool mypool 198.18.32.65 198.18.32.70 netmask 255.255.255.248
ip nat inside source list 1 pool mypool overload
ip classless
ip route 0.0.0.0 0.0.0.0 192.0.2.114
!
ip flow-export version 9
!
!
access-list 1 permit 192.168.100.16 0.0.0.15
access-list 1 permit 192.168.6.64 0.0.0.63
!
!
!
!
!
line con 0
password cisco
login
!
line aux 0
!
line vty 0 4
login
!
!
!
end

Still not pinging from that

By: GC

GC — Wed, 11 Feb 2015 13:31:39 +0000

Is this lab still valid??

By: robin

robin — Wed, 11 Feb 2015 06:35:51 +0000

hi..for the same scenario is it possible to configure dnat?

By: Ghada

Ghada — Sun, 08 Feb 2015 20:49:15 +0000

sorry guys , the problem that cause pinging to fail is that the NAT on interfaces is not applied……so just add NAT inside on int f0/0 and NAT outside on int S0/0 as shown.

It will work perfectly
the file is all good and configured correctly

By: Ghada

Ghada — Sun, 08 Feb 2015 08:18:39 +0000

For everyone who’s ping is not working……the file (named NAT_sim_question) is mis-configured , use the other file (named NAT_sim_question_answered) it works,but take care about the different IPs

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By: andrew

andrew — Wed, 04 Feb 2015 13:37:26 +0000

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By: chevarri

chevarri — Wed, 21 Jan 2015 11:53:29 +0000

@SB, no routing necessary since the networks are directly connected.

By: SB

SB — Sat, 17 Jan 2015 18:58:05 +0000

In the above sim, is routing already enabled on the routers? In exam do we need to configure routing as well? In the question we are given multiple public address. So i think we should not use ‘overload’ (or PAT). We must configure dynamic NAT. Please suggest if this understanding is wrong.

By: Yo

Yo — Sat, 17 Jan 2015 08:12:58 +0000

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By: guido

guido — Thu, 15 Jan 2015 07:49:41 +0000

sorry, this is the config for pkt, i didn’t put the ip nat pool cmd:

Weaver(config)#ip nat pool mypool 198.18.184.105 198.18.184.110 netmask 255.255.255.248
Weaver(config)#access-list 10 permit 192.168.100.17 0.0.0.15
Weaver(config)#ip nat inside source list 10 pool mypool overload
Weaver(config)#int fa0/0
Weaver(config-if)#ip nat inside
Weaver(config-if)#int s0/0
Weaver(config-if)#ip nat outside
Weaver(config-if)#exit
Weaver(config)#ip route 0.0.0.0 0.0.0.0 192.0.2.114
Weaver(config)#do wr

By: guido

guido — Thu, 15 Jan 2015 07:47:00 +0000

also, at the end of the .pkt, it says that you must config a static route (like in a real config, a static route to internet) R(config)#ip route 0.0.0.0 0.0.0.0 [next hop address]

pkt answer:

Weaver(config)#access-list 10 permit 192.168.100.17 0.0.0.15
Weaver(config)#ip nat inside source list 10 pool mypool overload
Weaver(config)#int fa0/0
Weaver(config-if)#ip nat inside
Weaver(config-if)#int s0/0
Weaver(config-if)#ip nat outside
Weaver(config-if)#exit
Weaver(config)#ip route 0.0.0.0 0.0.0.0 192.0.2.114

from pc:

PC>ping 192.0.2.114

Pinging 192.0.2.114 with 32 bytes of data:

Reply from 192.0.2.114: bytes=32 time=2ms TTL=254
Reply from 192.0.2.114: bytes=32 time=2ms TTL=254
Reply from 192.0.2.114: bytes=32 time=2ms TTL=254
Reply from 192.0.2.114: bytes=32 time=2ms TTL=254

Ping statistics for 192.0.2.114:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 2ms, Maximum = 2ms, Average = 2ms

By: Muhammad Siddique

Muhammad Siddique — Wed, 07 Jan 2015 15:26:07 +0000

http://www.info-it.net/cisco/ccna/types-network-address-translation.php

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Anonymous — Sun, 04 Jan 2015 12:48:11 +0000

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By: chathu

chathu — Fri, 02 Jan 2015 16:02:55 +0000

there is a similar lab which we can download having configured correctly i cannot still ping 192.0.2.114

By: richard

richard — Sat, 27 Dec 2014 13:42:30 +0000

I cannot ping the 192.0.2.114 from either PC1 and PC2!!

Knowing that this pkt from is came from Q1 and i had changed the ip to 192.168.6.66 and 192.168.6.67 with default gateway 192.168.6.126 for these 2 pc.
But it’s still not work!!

am i make something wrong???

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By: Mindfre@k

Mindfre@k — Sat, 27 Dec 2014 10:19:03 +0000

download the latest Pkt i opened it with version 6.0.1 which i presume is latest

By: Mindfre@k

Mindfre@k — Sat, 27 Dec 2014 10:16:27 +0000

@choi guru

Rip protocol has been removed from ccna 200-120 as it is obsolete.Even jeremy from cbt nuggets confirmed it and to further confirm it i verified from the course outline from cisco

By: Hi all, coud you tel me please if some one is able to open pkt file for lab posted in this site, if yes whith wich packet tracer version ?

Fri, 19 Dec 2014 22:19:21 +0000

Hi all, coud you tel me please if some one is able to open pkt file for lab posted in this site, if yes whith wich packet tracer version ?

By: Choi

Choi — Tue, 16 Dec 2014 16:12:00 +0000

to Guru, yes.. RIP and NAT SIM are included.

By: Guru

Guru — Mon, 15 Dec 2014 03:47:23 +0000

Hello all,
NAT SIM Question included in ccna 200-120 exam?

pls i need urgent response

By: Guru

Guru — Mon, 15 Dec 2014 03:45:34 +0000

Hello all,
Rip protocol topic is included in ccna 200-120 exam?
Pls i need urgent answer

By: mj

mj — Mon, 08 Dec 2014 13:20:35 +0000

do we need to assign the access-list to interface?

By: Osama

Osama — Thu, 04 Dec 2014 17:12:57 +0000

Please don’t post answers if they all miss configuration , static routes aren’t configured and it’s configured on one router only in the file I download from the link above

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ARJUN.K — Thu, 04 Dec 2014 10:22:24 +0000

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ARJUN.K — Thu, 04 Dec 2014 10:21:52 +0000

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By: Anonymous

Anonymous — Thu, 27 Nov 2014 09:56:24 +0000

how can i get packet tracer

By: SAM

SAM — Wed, 12 Nov 2014 11:22:28 +0000

there is difference between inner configuration and the configuration on site so dont get mad, calm down and follow given data on packet tracer…..