usdPppLinkConfigAuthentication 1.3.6.1.4.1.4874.2.2.11.1.1.2.1.5

Specifies the type(s) of authentication, if any, to be negotiated with the peer: none No authentication is negotiated. pap PAP negotiation only. chap CHAP negotiation only. papChap PAP negotiation is attempted first; if fails, attempt CHAP. chapPap CHAP negotiation is attempted first; if fails, attempt PAP. If authentication negotiation is not supported for this PPP interface, then any attempt to explicitely set this object will result in a notWritable error and it will be implicitily set to the DEFVAL on row creation. Setting this object to none will set usdPppLinkConfigAuthenticatorVirtualRouter object to an empty string.