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Auth Scheme Selection when Security is required Old RFC New Req Requirement Authentication Scheme ------ -------- ------------------ -------------------------------- MUST 2328 SHOULD NOT Null Authentication (1) MUST 2328 SHOULD NOT Simple Password (2) MUST 2328 MUST Cryptographic Auth NULL auth cannot be used if operator requires network security. Used mostly to avoid accidental introduction of router in a domain. Not useful if security is required |