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NAT-Question-Please reply

Thanks for your reply.

Please i want to understand if what i understood is correct or not :-

1- NAT is devided in to the 4follwoing Parts :-

Static - Dynamic- PAT - Overloading .


Static Nat :-

is used only if you have one real IP Address and need this Real IP Address to be assign to one Internal User Only, and this User will always access internet with this real IP Address,and if the Users change the Internal IP Address, the Users will not be able to access internet, is that correct ?


2- Dynamic NAT :-

i am confused here, whcih Part is correct ?

First Part :-

Dynamic NAT, is used if i have a gorup of internal IP Address and 1 real IP.

and all the users need to access internet through this real IP , is that correct ?


Second Part :-

Dynamic NAT, is only when i have a group of real IP Address and i have here a group of Internal IP , and i need each one of the Internal to access Internet through each one of the external Real IP. is that correct ?


what is the PAT & Overload ? what is the diffrent between them ?

and if i have only 1 real IP Address and 200 users as internal, with which NAT should i go ? Dynamic, Static, PAT, or overload ?

Please Update me.

what is the PAT & Overloaded ?


Re: NAT-Question-Please reply

PAT = Overloading

PAT, or overloading, is a feature of Cisco IOS NAT and can be used to translate "internal" (inside local) private addresses to one or more "outside" (inside global-usually registered) IP addresses. Unique source port numbers on each translation are used to distinguish between the conversations.

So use PAT for your scenario


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