Connect GNS3 to internet via NVI

NAT Virtual Interface



NVI is the feature given by cisco in IOS series greater then 12.4. In this, for NAT we do not have to enter in or out on the interfaces, it is very confusing for fresher to understand in which side it will be in or out. This feature has avoided the usage of in and out, we only have to specify on the interface that this interface is used for NAT. And on the router R2 we have to make NAT pool of a subnet , access list which will show that which subnet is permitted for NAT and which is not.

Configuration of Router R2 R2.txt

Configuration of Router R3 R3.txt

Configuration of Router R4 R4.txt

Ping Confirmation

Router R2 :- 

Router R3 :- 

Router R4 :-

Linux :- 

By :- Vishal Sharma