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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Enabling AAA Authentication — RADIUS

To enable authentication from the RADIUS server, and use TACACS as a backup, use the following commands.

  1. Enable RADIUS and set up TACACS as backup.
    CONFIGURATION mode
    aaa authentication enable default radius tacacs
  2. Establish a host address and password.
    CONFIGURATION mode
    radius-server host x.x.x.x key some-password
  3. Establish a host address and password.
    CONFIGURATION mode
    tacacs-server host x.x.x.x key some-password

Examples of the enable commands for RADIUS

To get enable authentication from the RADIUS server and use TACACS as a backup, issue the following commands.

The following example shows enabling authentication from the RADIUS server.

DellEMC(config)# aaa authentication enable default radius tacacs
Radius and TACACS server has to be properly setup for this.
DellEMC(config)# radius-server host x.x.x.x key <some-password>
DellEMC(config)# tacacs-server host x.x.x.x key <some-password>

To use local enable authentication on the console, while using remote authentication on VTY lines, run the following commands.

The following example shows enabling local authentication for console and remote authentication for the VTY lines.

DellEMC(config)# aaa authentication enable mymethodlist radius tacacs
DellEMC(config)# line vty 0 9
DellEMC(config-line-vty)# enable authentication mymethodlist

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