NVI- NAT Virtual Interface

Dear brothers,

Can you put some light on NAT Virtual Interface. I noticed that its dynamically created w.r.t. some IOS, when we create static NAT entry

R2#sh ip int brief

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0         YES NVRAM  up                    up      

FastEthernet1/0         YES NVRAM  up                    up      

NVI0                                    unassigned      NO  unset     up                           up      

Loopback102              YES NVRAM  up                    up      

Appreciate much for your help,



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