Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 949

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Configuring 802.1X port security

Syntax: supptimeout <seconds>

<seconds> is a number from 1 – 4294967295 seconds. The default is 30 seconds.

Setting the maximum number of EAP frame retransmissions

You can optionally specify the number of times the Dell device will retransmit the EAP-request

frame. You can specify between 1 – 10 frame retransmissions. For example, to configure the

device to retransmit an EAP-request frame to a Client a maximum of three times, enter the

following command.

PowerConnect(config-dot1x)# max-req 3

Syntax: max-req <value>

<value> is a number from 1 – 10. The default is 2.

Specifying a timeout for retransmission of messages to the

authentication server

When performing authentication, the Dell device receives EAPOL frames from the Client and

passes the messages on to the RADIUS server. The device expects a response from the RADIUS

server within 30 seconds. If the RADIUS server does not send a response within 30 seconds, the

Dell device retransmits the message to the RADIUS server. The time constraint for retransmission

of messages to the Authentication Server can be between 0 – 4294967295 seconds.

For example, to configure the device to retransmit a message if the Authentication Server does not

respond within 45 seconds, enter the following command.

PowerConnect(config-dot1x)# servertimeout 45

Syntax: servertimeout <seconds>

Initializing 802.1X on a port

To initialize 802.1X port security on a port, enter a command such as the following.

PowerConnect# dot1x initialize e 1

Syntax: dot1x initialize ethernet<portnum>

The <portnum> parameter is a valid port number.

Allowing access to multiple hosts

Dell devices support 802.1X authentication for ports with more than one host connected to them. If

there are multiple hosts connected to a single 802.1X-enabled port, the Dell device authenticates

each of them individually. Refer to “Configuring 802.1X multiple-host authentication” on page 949.

Configuring 802.1X multiple-host authentication

When multiple hosts are connected to the same 802.1X-enabled port, the functionality described

in “How 802.1X Multiple-host authentication works” on page 931 is enabled by default. You can

optionally do the following: