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RADIUS Overview

303538-A Rev 00

2-5

Configuring the Remote User to Work with the RADIUS Client

In most RADIUS networks, the remote user is a router. To enable the remote

router to work with the RADIUS authentication client, follow these guidelines:

• Enable dial optimized routing.

The remote router sends routing updates to advertise its LAN to the client. By

enabling dial optimized routing, you reduce the frequency of routing updates,

which prevents the line from remaining active unnecessarily.

• Configure one-way PPP authentication.

The remote router must support one-way PPP authentication, which means

that only the client sends CHAP challenges or PAP authentication requests to

the remote user. The remote user only recognizes and responds to the CHAP

challenges or PAP authentication requests from the client.

• Configure a default route in the routing table of the remote router.

The client does not advertise its LAN to the remote router. To specify the path

from the remote router to the client, you configure a default route, which is a

static route that enables the remote router to contact the client.

Refer to Appendix C

for configuration examples.

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Avaya Configuring RADIUS Manual de usuario Pagina 35