
Configuring Dial Services
4-2 114062 Rev. B
When you configure a PPP connection, Site Manager automatically creates a
generic PPP line record that all pools use for identification. To implement
authentication, you must set up the router’s caller resolution table.
Types of Authentication
You can configure one-way authentication or two-way authentication. In two-way
authentication, both routers can authenticate each other. In one-way
authentication, only the called router can authenticate.
Two-Way Authentication
Figure
4-1 shows an example of two-way authentication.
Figure 4-1. Two-Way Authentication
For CHAP, Router A initiates a CHAP challenge, and Router B responds. Router
A responds with a response match and the connection is activated. Router B can
also initiate a CHAP challenge.
Router A Router B
Authenticate request
Authenticate response
Two-Way Authentication -- PAP
Router A or B can initiate authentication
DS0030A
Challenge
Response match
Response
Router A Router B
Two-Way Authentication -- CHAP
Router A or B can initiate authentication
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