Glossary

R

RADIUS Dictionary

The RADIUS dictionary passes information between a script and the RADIUS server, or between

 

scripts running on a single packet.

RADIUS Proxy

In order to provide for the routing of RADIUS authentication and accounting requests, a RADIUS

 

proxy may be employed. To the NAS, the RADIUS proxy appears to act as a RADIUS server, whereas

 

to the RADIUS server the proxy appears to act as a RADIUS client.

RADIUS Server

A server that is responsible for receiving user connection requests, authenticating the user, and then

 

returning all of the configuration information necessary for the client to deliver the service to the user.

RAS

Remote Access Services. See RADIUS Client.

Remote DHCP

Usually a DHCP server in the service provider’s networks, however it might also be a DHCP server in

Server

the customer’s VPN.

Remote Server

A server that has been registered with the user interface, which can later be referenced as a proxy client

 

or as the method to perform a service; for example, a remote RADIUS server can be specified to act as

 

a proxy client.

REX

Roaming

RADIUS EXtension allows you to write C and C++ programs to affect the behavior of Cisco Access Registrar.

The ability to connect to a NAS that is not your normal POP (Point of Presence) and have the Access-Request redirected to your normal RADIUS server. The ability to use any one of multiple Internet server providers, while maintaining a formal, customer-vendor relationship with only one.

Router

A network device that connects multiple network segments and forwards packets from one network to

 

another. The router must determine how to forward a packet based on addresses, network traffic, and

 

cost.

Routing Tables

RTT

A table that lists all of the possible paths data can take to get from a source to a destination. Depending on how routers are configured, they may build their tables dynamically by trading information with other routers, or they may be statically configured in advance.

Round-Trip Time is the estimated round-trip time for an Acknowledgment to be received for a given transmitted packet. When the network link is a local network, this delay will be minimal (if not zero). When the network link is the Internet, this delay could be substantial and vary widely. RTT is adaptive; it adjusts to include the PPD (Packet Processing Delay) and whatever shifting network delays contribute to the time between a packet being transmitted and receiving its acknowledgment.

S

SAP

Script

Service Access Points (source and destination) identify protocols from which a packet has come and to which a packet must be delivered.

Instructions that are run in the context of a RADIUS client/server session. Scripts can be specified for servers, clients, vendors, and services. A script can be used as an incoming script, an outgoing script, or both. Incoming scripts are executed during the Access-Request portion of a dial-in session. Outgoing scripts are executed during the Access-Accept portion of a dial-in session. Scripts are referenced within the User Interface by name. Scripts can be source code for a scripting language or a binary file.

Cisco Access Registrar 3.5 Concepts and Reference Guide

 

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3.5 specifications

Cisco Systems 3.5 is an advanced version of Cisco's renowned networking and security solutions. This iteration showcases significant enhancements in performance, scalability, and security, making it a preferred choice for enterprises aiming to optimize their network operations and bolster their cybersecurity posture.

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