Avaya Configuring Dial Services Bedienungsanleitung Seite 119

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Implementation Notes for All Dial Services
117353-B Rev. 00
5-5
Configuring the Type of Authentication
The Outbound Authentication parameter determines the type of authentication the
router uses. You enable this parameter to use two-way authentication and disable
it to use one-way authentication. To set this parameter, see the appropriate chapter
for configuring circuits.
Using CHAP Names and PAP IDs for Authentication
Authentication occurs before the routers establish a connection. The router at one
or both ends of the connection must agree on the CHAP name and secret or PAP
ID and password so PPP can identify the caller and activate the correct circuit.
Figure 5-3
shows an example of routers using CHAP for authentication. PAP
works in a similar way. This example uses two-way authentication.
Figure 5-3. Routers Using CHAP for Authentication
In Figure 5-3, Routers A and B each have a caller resolution table that maps local
circuits to the names of remote callers.
Router A
Router B
Router C
PPP link between Router A and Router B
Dial
device
Dial
device
Dial
device
DS0019A
Local CHAP Name: Branch_A
Local CHAP Name: Branch_B
Local CHAP Name: Branch_C
Branch_C 13
Router A
Caller resolution table
Branch_B
27
Caller Name
Local Circuit
Router B
Caller resolution table
Branch_A
Caller Name
Local Circuit
5
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