NAT Quiz

I think it’s the inside global adress that must be the good answer 10.4.4.4 and 10.4.4.5 are all local iP so if you ask one it should be the inside global

the answer correct of question1 its d

The answer to Q2 can not be 172.23.103.10, it has to be 10.4.4.4.or 10.4.4.5.

The explanation of Q1 (many to one) is opposite of Q2, why?

Question: “An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?”
“D. 172.23.103.10” can not be the right answer since this ist the destination IP (see exhibit)…

Answer to question “Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?” cannot be “172.23.103.10”, and “10.4.4.4-10.4.4.5” they would both be correct so it would ask for 2 answers. The only logical answer left is 172.23.104.4

Problem is this qu3stion is missing “after nat has taken place” other websites show as same. Answer is correct. Question is missing key phrase.

I think the correct answer is inside global which is 172.23.104.4

Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?

R1#show ip nat translations
Pro Inside global Inside local Outside local Outside global
tcp 172.23.104.3:43268 10.4.4.4:43268 172.23.103.10:23 172.23.103.10:23
tcp 172.23.104.4:45507 10.4.4.5:45507 172.23.103.10:80 172.23.103.10:80

The correct answer to this Q5 is 172.23.104.4. Question is vague and explanation ambigous. Bonus point. If you see such question skip it could just be a trap.

Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?

R1#show ip nat translations
Pro Inside global Inside local Outside local Outside global
tcp 172.23.104.3:43268 10.4.4.4:43268 172.23.103.10:23 172.23.103.10:23
tcp 172.23.104.4:45507 10.4.4.5:45507 172.23.103.10:80 172.23.103.10:80

can you please confirm the answer?
The answer should not be : 172.23.102.10

Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?

R1#show ip nat translations
Pro Inside global Inside local Outside local Outside global
tcp 172.23.104.3:43268 10.4.4.4:43268 172.23.103.10:23 172.23.103.10:23
tcp 172.23.104.4:45507 10.4.4.5:45507 172.23.103.10:80 172.23.103.10:80

A. 10.4.4.5
B. 172.23.103.10correct
C. 172.23.104.4wrong
D. 10.4.4.4

172.23.104.4 should be correct.

Can someone check-confirm last comment question @9tut

Same issue as the previous comment? Can someone check/confirm?

Q.4. Should be 172.23.104.4

The question is not framed correctly.

For example: – The IP address 10.4.4.4 & 10.4.4.5 are both inside local address which are part of your network. These addresses are the source IPs being NATed to 172.23.104.3 & 172.23.104.4, so for the outside network these 172.23.104.3 & 172.23.104.3 IP addresses are the source address.

The outside local address is the same as the inside local address but for the outside network, which is hidden/private to your network & outside global is the same as inside global for the outside network. Thats why both outside local and outside global address will be same in your NAT translation output.

Since you can only select one option you have to decide which ‘source’ IP address the question is asking.
An outside local address can also be the source address but from the outside network.

Hope this helps,
Amit.

Face it. This question: “Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?” is very poorly worded, the answer is incorrect (the correct answer should be 172.23.104.4 but then it depends on your perspective doesn’t it?), and the diagram provided with the answer explanation is absolutely incorrect (it is confusing and has the wrong IP addresses anyway). This question should be reworded or eliminated entirely. I vote for elimination.

I also vote for elimination of that question, it’s poorly worded, it almost certantly wasn’t worded like that on the actual exam and serves no purpose other than to confuse people. Same could be said for other questions on the site that seem to have been brain dumped by someone without a great visual memory.

@9tut,

NAT Overload uses one public IP Address for all private hosts, so it cannot be “many to many”, it is “one to many”.

Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?

this question if found in an exam should be illigal because it is ambiguous.
for R1 which we are looking in, the INSIDE is the SOURCE.

the fact that two hosts are looking for the same destination do not mean that it became a source. It could be the source address for the server, but we are looking at R1, and in the question is not specified that we have to look to the source address from the server prospective.

9TUT can help with this question? I have seen this question several times with not answer.

Refer to the exhibit. An engineer configured NAT translations and has verified that the configuration is correct. Which IP address is the source IP?

Can you explain why 172.23.103.10 is the answer? looks like is wrong.

@Alex: As we explained, this is not a clear question. For the receiving host then the source address should be the the outside local.
The source IP cannot be 172.23.104.4 as 172.23.104.3 is the same. We cannot have two correct answers.