Avaya Configuring PPP Services Manual do Utilizador Página 32

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Configuring PPP Services
2-6 114068 Rev. A
Figure 2-2. Initializing the PPP Interface
Router A Router B
PPP0002A
1. PPP interface comes alive on network; begin LCP negotiations:
Send Configure-Request
Send Configure-Request
Send Configure-ACK
Send Configure-ACK
2. LCP opened; begin authentication phase, PAP or CHAP:
Challenge
Response
Response Match
PAP* CHAP*
Send Authenticate-ACK
Send Authenticate-Request
*Shows Router A initiating authentication. Router B can also initiate authentication.
3. Authentication complete; begin NCP negotiations:
Send Configure-Request
Send Configure-Request
Send Configure-ACK
Send Configure-ACK
4. NCP open; begin transmitting data:
Send Data
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