No Alias in Static NAT Entry


Dear All,


Can you explain me, why a dynamic interface is created automatically when we make a static NAT entry. Please check the below output:



R2(config)#do sh run | i nat

ip nat inside source static 10.1.4.4 12.1.2.4




R2#sh ip alias

Address Type             IP Address      Port

Interface                12.1.12.2 

Dynamic                     12.1.2.4 

Interface                12.1.2.2 

Interface                10.1.23.2 



Please also check this:



R2#sh run | i nat

ip nat inside source static 10.1.4.4 12.1.2.4 no-alias



R2#sh ip alia

Address Type             IP Address      Port

Interface                12.1.12.2 

Interface                12.1.2.2 

Interface                10.1.23.2 




Thanks in Advance,

Aashish

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