CCNA NAT SIM Question 2
Question
| You work as a network technician at 9tut.com. Study the exhibit carefully. You are required to perform configurations to enable Internet access. The Router ISP has given you six public IP addresses in the 198.18.32.65 198.18.32.70/29 range. 9tut.com has 62 clients that needs to have simultaneous internet access. These local hosts use private IP addresses in the 192.168.6.65 – 192.168.6.126/26 range. You need to configure Router1 using the PC1 console. You have already made basic router configuration. You have also configured the appropriate NAT interfaces; NAT inside and NAT outside respectively. Now you are required to finish the configuration of Router1. |
Solution
Note: If you are not sure how NAT & PAT work, please read my Network Address Translation NAT Tutorial. You can download a similar sim to practice here: http://www.9tut.com/download/9tut.com_CCNA_NAT_sim_question.zip
The company has 62 hosts that need to access the internet simultaneously but we just have 6 public IP addresses from 198.18.32.65 to 198.18.32.70/29 => we have to use NAT overload (or PAT)
Double click on PC1 to access Router1′s command line interface
Router1>enable
Router1#configure terminal
Create a NAT pool of global addresses to be allocated with their netmask (notice that /29 = 248)
Router1(config)#ip nat pool mypool 198.18.32.65 198.18.32.70 netmask 255.255.255.248
Create a standard access control list that permits the addresses that are to be translated
Router1(config)#access-list 1 permit 192.168.6.64 0.0.0.63
Establish dynamic source translation, specifying the access list that was defined in the prior step
Router1(config)#ip nat inside source list 1 pool mypool overload
This command translates all source addresses that pass access list 1, which means a source address from 192.168.6.65 to 192.168.6.126, into an address from the pool named mypool (the pool contains addresses from 198.18.32.65 to 198.18.32.70)
Overload keyword allows to map multiple IP addresses to a single registered IP address (many-to-one) by using different ports
The question said that appropriate interfaces have been configured for NAT inside and NAT outside statements.
This is how to configure the NAT inside and NAT outside, just for your understanding:
Router1(config)#interface fa0/0
Router1(config-if)#ip nat inside
Router1(config-if)#exit
Router1(config)#interface s0/0
Router1(config-if)#ip nat outside
Before leaving Router1, you should save the configuration:
Router1(config)#end (or Router1(config-if)#end)
Router1#copy running-config startup-config
Check your configuration by going to PC2 and type:
C:\>ping 192.0.2.114
The ping should work well and you will be replied from 192.0.2.114
Other lab-sims on this site:
CCNA Configuration SIM Question (RIPv2 SIM)
@TechGoliath
There’s no questions in the pkt file.. im assuming the questions are similar to the NAT lab sim here at 9tut.. am i correct??? if it is.. then it’s a piece of cake :)
guys, have any one work out why this NAT Sim2 not working ? can’t ping to ISP 192.0.2.114
ping from router is fine but not from testing PC
try to run debugs, try to see if you are able to see the traffic reaching the router.
Debug ip nat
debug ip icmp
If you can run those two commands while keeping a continuos ping going. you should be able to find the issue. Double check your ACL associated to the nat statement :D
Admin, this pkt file is from question 1.
You never ping the 192.0.2.114, because the Weaver interfaces and PC Ip Address are wrong.
interface FastEthernet0/0
ip address 192.168.100.30 255.255.255.240
ip nat inside
duplex auto
speed auto
!
!
ip nat pool CCNA 198.18.32.65 198.18.32.70 netmask 255.255.255.248
ip nat inside source list 1 pool CCNA overload
ip classless
!
access-list 1 permit 192.168.6.64 0.0.0.63
Look the routing table in ISP, too.
ip router 192.168.6.64 255.255.255.192 192.0.2.113
@sony
Check ping status from PC which is connected to switch, not from PC which is connected with a router via Console port.
If you want to ping the isp, double click on the cloud, Config>Frame relay tab, remove the existing link, change the second serial 0 > serial 1(101 auto > 102) then add. Ping should work. Sorry for my bad english
Sony re-do these configs
Router1(config)#interface fa0/0
Router1(config-if)#ip nat inside
Router1(config-if)#exit
Router1(config)#interface s0/0
Router1(config-if)#ip nat outside
Passed 903 score today.
Acl, acl2 eigrp labs I did the one exame
Hello there, im just new here. is the intention of this NAT is to show that when you ping from host to the serial ip it will show on router the translated ip address? cause im able to ping serial interface and applied nat in and out but it’s not translating
hahaa i yet realized that it will not work because the packets doesn’t exit to serial interface that’s why its most likely not working…
For the .pkt file,we cannot add a pool of 192.168.32.65 – 192.168.32.70 as the ISP router accepts the traffic only from 192.0.2.0/24. Also, I tried to NAT the traffic with pool of 192.0.2.117 – 192.0.2.130 but the ISP router drops it. It works only if you NAT the traffic with interface IP of Serial 0/0 on Router1. Mistake in the .pkt file.
Uhoh..my mistake..the .pkt file is proper and has no issues..
helo i m wrkng nat with gns 3 but i cant ping
any one plz tel me is nat wrkng in gns?
Hi,please can anyone help me send the new Watson dumps to elshen.rehim@gmail.com
Thanks
Looking for new Watson dumps as well, please email to lplpmc@gmail.com
Passed 958/1000
Thanks 9tut! Exactly same EIGRP ACL ACL2 Sims…
also went through dumps really helped a lot!!!..
Whatson, Giilibeast, Jennie and Mathew Dumps (examcollection.com)
All 51 questions were from dumps…
even if u dont study book and only go though dumps a few times then you will pass easily…
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Hi Friend,
Wrote the exam this Aug 14.. Thanks 9tut! Exactly same EIGRP ACL ACL2 Sims…
Everything was from Dumps.. BE carefull, even after trying so many times, I got nervous in exam and dint applied access list on interface caused 15 mins loss to me..
Rest all is good.. Thanks to all 957/ 1000
Hi,please can anyone help me send the new Watson dumps to amaro.macedo@outlook.com
Thanks
Hi, Pls send me the latest dump for CCNA 200-120.. email id is cavaliarz@gmail.com
just do the nat overload on the int s0/0 and ping to the isp works fine.
just do the nat overload on the int s0/0 and ping to the isp works fine.
Is this lab is on acctual exam?
Sorry, dumps from examcollection.com is it mean the VCE file?
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Why the pool name is mypool ?
Is it mentioned in the question ?
Or any name can be used..
@Saad: You can use any name you like.
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There is no proper information about the subnet mask in the practice sessions. Please give the subnet mask for the practice session, and tell me do we need any routing protocols.
are there anybody who pass exam recently?can you tell me which lab sim are valid?
Can we use ? (Help) during configurations.. in exam..
Hi, Pls send me the latest dump for CCNA 200-120.. email id is reniyolandasari@ymail.com
thanks
I want to admission your CCNA BATCH# 129. CLASS START DATE: JUNE 01, 2013 CLASS SCHEDULE: SAT & THURS (6 – 9)pm,Note: pls give me your contcat number with contcat add and email address. i try many time your given cell (8816173 ext406) but not receive yet. please help me.
@vouchers
don’t use these vouchers, you can get a lifetime ban on all future cisco exams and nullification of all previous certifications.
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i cleared the exam with 1000/1000..thanks 9tut..
plz could u send me latest dumps taking my exam this week fathyrf@gmail.com
full video lap sim acl1 acl2 eigrp and dump ccna 120-200 question 314
https://www.youtube.com/watch?v=Q7cTJsVxebc&list=PLF3JXcGq4iLEYCucsr8acdiUvZ-AF198e&index=1
plz confirm if Nat lab will be there in the exam…
Hi,please can anyone help me send the latest Watson dumps to
peter2001cheyo@gmail.com
Thanks
me pass my ccna exam today
i got 958
thank you 9tut
@ali
pls tell name of Simulation
Check your configuration by going to PC2 and type:
C:\>ping 192.0.2.114
i check it work fine,, but the ip address for s0/0 is 192.0.2.113 ,, can someone please verify????
i think ” Overload ” , won’t be used in this command , because it wants us to make dynamic nating not pating
dynamic : many to many
pating : many to one
For the Packet tracer, the following would be the statements
interface FastEthernet0/0
ip address 192.168.100.30 255.255.255.240
ip nat inside
duplex auto
speed auto
!
interface Serial0/0
ip address 192.0.2.113 255.255.255.0
encapsulation frame-relay
ip nat outside
!
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
!
!
access-list 1 permit 192.168.100.16 0.0.0.15
Hi all i am taking exam next week, can any one send me latest dump pls. at mr1retired98@yahoo.com
Thanks
NAT SIM2 was not working initially. I tried to check the default route on ISP router , but password “cisco” is not working. then I did the following to make it work
Removed the ISP router (just because password is unknown)
re-connected a 2811 router
Added a serial card to 2811 router
removed the cloud
connected a serial DCE cable directly from Weaver to ISP router
Checked Show controllers on both routers
Configured clockrate command on Weaver which had DCE
configured IP route 0.0.0.0 0.0.0.0 192.0.2.113
Now Ping from PC to 192.0.2.114 is working.
those having problem with ping try above and give feedback
thanks FR
Also the encapsulation to be changed to PPP