Display and Debug PPP 175By default, virtual Baud rate is not set on interface.Display and DebugPPPPlease use the display and debugging commands in all views.Table 212 Display and debug PPPTypical PPPConfigurationExamplePAP AuthenticationExampleI. Configuration RequirementAs shown in Figure 50, Router1 and Router2 are interconnected through interfaceSerial0, and router Router1 (authenticator) is required to authenticate routerRouter2 (requester) in PAP mode.II. Networking DiagramFigure 50 Networking diagram of PAP and CHAP authentication exampleIII. Configuration Procedure1 Configure Router1 (authenticator):a Add a user with name Router2 and password hello to the local database[Router]local-user Router2 password simple hellob Configure to start PAP authentication at this side[Router]interface serial 0[Router-Serial0]ppp authentication-mode pap2 Configure Router 2 (requester):a Configure this side to be authenticated by the opposite side with usernameRouter2 and password hello[Router]interface serial 0[Router-Serial0]ppp pap local-user Router2 password simple helloCHAP AuthenticationExampleI. Configuration RequirementIn Figure 50, Router1 is required to authenticate Router2 in CHAP mode.Disable applying the setting of virtual Baud rate oninterfaceundo virtualbaudrateOperation CommandDisplay Multilink PPP information display ppp mp [ interface typenumber ]Enable the debugging of PPP debugging ppp { event | lqr |negotiation | packet | all }Quidway 2Quidway 1 Router 2Router 1