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MPLS and VPN Architectures, Volume II by Jeff Apcar, Ivan Pepelnjak, Jim Guichard

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Providing Dial-Out Access via LSDO

The LSDO feature is an effective and scalable method of providing dial-out services in a service provider environment. LSDO eliminates the need to configure individual dialer profiles for every outgoing destination. Instead, all the dialer profile attributes such as the dialing number, username/passwords, and PPP peer IP address are kept on an AAA server. Only a generic dialer interface needs to be configured on all service provider VHG or NAS devices. By using an AAA server, you can keep all dialer configurations at a central point and download them to any router in the service provider network that provides dial-out services.

When an interesting packet causes a dialer to be activated, the router downloads ...

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