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)
I passed my CCNA on the 6th of August scoring 907/1000. the simulation questions were Access Lists, EIGRP and VTP. In VTP commands, they disabled mac-address-table so you can use mac address-table incase the first one didn’t work. all the best guys. you can call me for more clarification on +2348030957364.
friend i have one doubt nat simulation if i configure ip nat pool cisco 198.18.32.64 198.18.32.71
netmask 255.255.255.248 and ip nat pool cisco 198.18.32.65 198.18.32.70 which one is correct or both correct pls tell me
Note, you have to spacify the pool range, not doing as ‘ip nat inside source list 1 interface s0/0″. This will make the translation to go out as the IP address of s0/0:portnumber which is not the answer.
Hi guys! I pass in CCNA today! Tanks so much for 9tut!
I pass with 947/1000. Very good!
This SIM was in my exam!!
how to cook pie?
using over heat router.
thaks
i ask rachel..
ohh
she died.
How many drag and drops are likely to come for this exam?
Can someone tell me if there is any difference between NAT SIM1 and NAT SIM2????
@Robson, did you take the exam the 2nd time…? I am asking because you usually get EIGRP ACL2 VTP Sims on the CCNA exam
Password of ISP router is noway :)
now u can enjoy configuration of isp router
Hi guys,
Looks like NAT sim 1 and 2 questions are the same, aren’t they.. I have downloaded the Sim and it doesn’t match with the exhibit above can someone help – thank you
take the exam and have 801
the sim was valn eigrb acl
will retake the exam
how do we get access-list1 permit 192.168.6.64 0.0.0.63
where do we get 0.0.0.63 from…? do we do a calculation? Of what?
@qobos
it’s called wild card, 192.168.6.64 0.0.0.63 = /26
/26 = total is 64| 64 – 1 = 63 = 0.0.0.63
/25 = total is 128 | 128-1 = 127 = 0.0.0.127
noway in ISP xd
Hi to all, Same here Im am working with this NAT2 labs but failed to ping the ISP router. Can someone please tell what are the problem of this simulation for the benifit of us and to the other takers of CCNA. thank you very much.
@jaguar
The diagram and configuration shown above do not match with the packet tracer simulation provided with the link.
if u are applying same commands with the provided .pkt file then it will cause problems.
you can check this link for NAT sim.
http://www.networksheaven.com/ccna-exam-nat-pat-lab
also u can only ping from the PC 1 host which is dedicated for testing
Can anyone please give me the latest dumps for 640-802, it would be greatly appreciated.
amirakclubs@gmail.com
thanks
@Vick & Michael
The difference between this sim and the other NAT sim here on 9tut seems to only be the IP addresses used. On NAT SIM Q1 it is 192.18.184.105-110 instead of this one’s 192.18.32.65-70. I haven’t looked at the downloadable packets but overall it is the same SIM on these two pages with different IP’s.
Hi Abdul Ahad. Thank you very much. I alreay download the .pkt file.
Can anybody give some information about labs and questions who pass the exam last days.
Please Help Meeeeeee…..I am going to sit my 640-802 on 27th September. “Can we use Tab Key and Question Mark ??? at the real exam???
thanks
hello i passed my CCNA Yestarday with 907/1000
i got EIGRP ACL2 VTP Sims
the dump from spike is 100% correct
good luck
Thank you elaijah and congratulation. Can you share the detail ?
passed today 973/1000
eirgp, vtp acl2
tnx :)
some commands allow tab key, but in acl sim, cant use tab
I changed the IPs for the router fa0/0 as well as for the switch vlan1 and for the LAN PCs to match the same subnet /26, but I only can ping the 192.0.2.113 ! someone help plz ! or is it a bug ?
Hil all,
Congratulation for your passing the CCNA exam…
I have schedule to take exam this Wednesday 25th Sep, so please I need your help if you remember some of question you it will help me
some of guys mentioned that there is bugs in exam simulation so please did you faced any error, by the way I had Passit4sure dumps is it enough ?
thanks for your help
hebbo7@yahoo.com
During the SIM testlets can you use the ‘?’ when typing commands? To find out what options are available for a particular command?
All the pkt files are wrong….donot waste time downloa
ding it….
Hi,
the sim isnt working because the EXT ip’s isnt registerd
try to fix it
u can finish the sim if cinfiguring the na to the interface
which sims are on ICND#1?
which sims are on ICND#1? 640-822
Hello all, does anyone know if during the exam & you happen to get a SIM testlets can you use the ‘?’ when typing commands? To find out what options are available for a particular command?
Thanks
Hi everyone i want to know ccna exam is enough to see the 9tut whole website . i want to
see vce but i have not enough time please reply me thank you all.
yes you can pass the exam with 9tut only. I did not get vce or dumps.
the downloadable .pkt in this “nat sim question2″ correspond to “nat sim question1″ lab :)
Just passed my 640-802 exam. Sims were EIGRP, VTP and ACL.
I couldn;t do ACL sim , got zero in it but still managed to pass by 894 marks.
Thanks Almighty.
If you need any guidance, can contact me shamz_71@hotmail.com
download latest dumps from
9 t u t . w e e b l y . c o m
“?” was available when did it last week. Some say it costs marks when you use it. rumors.
RETAKE – When you retake an exam, Do you get a different lab sim on your second attempt? I heard when you retake, they replace one of the labs (VTP ACL2 EIGRP) with NAT lab. Can anyone one confirm this?
Hi,
I Pass the exam today 1000 :) I labs were eigrp vtp acl2.
Like Jason on Sept 18 said, use the NAT1 configuration. The IPs in NAT2 will not work for the NAT2 Sim. Use this which you can find at NAT1 Sim:
Configuration information
router name – Weaver
inside global addresses – 198.18.184.105 198.18.184.110/29
inside local addresses – 192.168.100.17 – 192.168.100.30/28
number of inside hosts – 14
Then add interfaces. works!!
the “?” key works in acl2 sim in exam ? please someone reply
I passed CCNA today 960/1000. configure terminal was not working so I have to press enter after typing configure to enter config mode. Thanks for the help
Hi guyz , i am giving my ccna on 30th . I tried by configuring default route(on both the routers) as suggested by some ppl , but even that is not working.Do we need to config rip on these routers as mentioned in todd lamle? Pl respond asap.Thnx in advance
guyz i got it ! If anyone needs help pl let me know
@123
Congrats!:) What Sims did you have?
did it yay