Introduction to NAT and PAT

[lagapidis (Lazarus Agapidis)]

Hello Daniel

@dlais1987

does he need to apply it to the same interface with a secondary ip address command or will it automatically work with NAT because the address is within the /28 subnet and how is this possible if so?

The short answer is that it will work because the address is within the /28 subnet. When employing NAT, the outside address of the WAN interface can either be in the subnet of the NAT pool or it may not be in the subnet. You can find out more detailed information at this post:

NAT pool and outside interface

Hello Jelanimanzili The quick answer to your question is no. The detailed answer is below: The IP address of the outside interfaces does not have to be on the same subnet as the range of NAT pool IP addresses. Your configuration is correct. However, in order for it to work, the ISP that has given you the outside pool of addresses must have configured routing on its end to be able to route translated packets to the internet. Concerning your second question, if you want to ping the outside i…

I hope this has been helpful!

Laz