NAT

tube

Hello, I have this question but I am not quite clear about it.

You have an internal web server that must be accessed from the corporate Internet connection. This internal web server has the IP address 172.16.55.10. The router accesses the Internet through the FastEthernet0/1 interface. What NAT syntax is necessary to forward HTTP requests to the internal web server?

A. ip nat outside destination tcp 80 fastEthernet0/1 172.16.55.10 80

B. ip nat inside source static tcp 172.16.55.10 80 interface fastEthernet 0/1 80

C. ip nat outside source tcp 80 172.16.55.10 80 interface fastEthernet0/1 80

D. ip nat inside destination static tcp 172.16.55.10 80 interface fastEthernet 0/1 80

The correct answer is B.

I then try to create a network as shown in the diagram below:



My question is that: Is it correct if I apply the ip nat inside on the the Fa0/0 of router 1 (R1) according to question being asked?

Thank you for your helps.

Netstudent

I know this is an old post, but just in case, this article should help answer that question. Maybe you will like the book, "hardening a jackass". I hope jdmurray doesn't see that.


http://www.parkansky.com/tutorials/dmz.htm

tube

Hello Netstudent

Thanks for your reply. I am reading that book at a moment.

Netstudent

Oh really?? Was this a coincidence or did you decide to read it because of the link I posted? I was thinking about getting that book but wasn't sure how current it was. How is it?

tube

Oh because of the link you posted

I am reading the first chapter, I skimmed through the book and found that the author mainly talk about router security. It is in PDF format.