pppd-radius(8)

pppd-radius8

Radius authentication plugin for pppd(8)

Usage

pppd [options] plugin radius.so

Overview

The RADIUS plugin for pppd permits pppd to perform PAP, CHAP, MS-CHAP and MS-CHAPv2 authentication against a RADIUS server instead of the usual /etc/ppp/pap-secrets and /etc/ppp/chap-secrets files.

The RADIUS plugin is built on a library called radiusclient which has its own configuration files (usually in /etc/radiusclient), consult those files for more information on configuring the RADIUS plugin

Options

The RADIUS plugin introduces one additional pppd option:

radius-config-file filename

The file filename is taken as the radiusclient configuration file. If this option is not used, then the plugin uses /etc/radiusclient/radiusclient.conf as the configuration file.

avpair attribute=value

Adds an Attribute-Value pair to be passed on to the RADIUS server on each request.

map-to-ifname

Sets Radius NAS-Port attribute to number equal to interface name (Default)

map-to-ttyname

Sets Radius NAS-Port attribute value via libradiusclient library

Usage

To use the plugin, simply supply the plugin radius.so option to pppd, and edit /etc/radiusclient/radiusclient.conf appropriately. If you use the RADIUS plugin, the normal pppd authentication schemes (login, checking the /etc/ppp/*-secrets files) are skipped. The RADIUS server should assign an IP address to the peer using the RADIUS Framed-IP-Address attribute.

Releases

12 releases since Debian 3.1 (Sarge); the text changed 1 time.

  1. 3.1–12
  2. 13–Arch

Author

Dianne Skoll <[email protected]>

From ppp 2.5.4-2 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.