Users Guide

Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.4.1.0 Added support for IPv6.
8.3.7.0 Introduced on the S4810.
7.7.1.0 Authentication key length increased to 42 characters.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.2.1.0 Introduced on the E-Series.
Usage Information
To configure any number of RADIUS server hosts for each server host that is
configured, use this command. Dell Networking OS searches for the RADIUS hosts in
the order they are configured in the software.
The global default values for the timeout, retransmit, and key optional parameters
are applied, unless those values are specified in the radius-server host or other
commands. To return to the global default values, if you configure the timeout,
retransmit, or key values, include those keywords when using the no radius-
server host
command syntax.
You can use duplicate host names or IP addresses among RADIUS groups. However,
you cannot use duplicate host names or IP addresses within the same RADIUS group. If
a VRF is not configured on the RADIUS group, then servers configured in the group are
considered to be on the default VRF. RADIUS servers that are configured in the
CONFIGURATION mode are also considered to be on the default VRF.
You must configure the RADIUS group explicitly with the aaa radius group
command in order for the AAA servers to use the group of RADIUS servers. The 802.1x
servers use the group of RADIUS servers based on the VRF where the 802.1x request is
received. As a result, it is possible that both globally configured RADIUS servers as well
as the group-configured RADIUS servers (without VRF or default VRF) are used for
Security 1755