User manual

81
3‐6NAT
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NetworkaddresstranslationssolvetheproblemifsharingasingleIPaddresstomultiple
computers.WithoutNAT,allcomputersmustbeassignedwitha validInternetIPaddressto
getconnectedtoInternet,butInternetserviceprovidersonlyprovideveryfewIPaddresses
toeveryuser.Thereforeit’s
necessarytouseNATtechnologyto shareasingleInternetIP
addresstomultiplecomputersonlocalnetwork,soeveryonecangetconnectedto
Internet.
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ThisbroadbandroutersupportsfourtypesofNATfunctions,andtheinstructionsofthese
functionswillbegivenbe low.