Name: Cisco 300 Series
Brand: Cisco
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Security

Configuring RADIUS

340 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)

• Dead Time—Enter the number of minutes that elapse before a non-

responsive RADIUS server is bypassed for service requests. If the value is 0,

the server is not bypassed.

• Key String—Enter the default key string used for authenticating and

encrypting between the device and the RADIUS server. This key must match

the key configured on the RADIUS server. A key string is used to encrypt

communications by using MD5. The key can be entered in Encrypted or

Plaintext form. If you do not have an encrypted key string (from another

device), enter the key string in plaintext mode and click Apply. The

encrypted key string is generated and displayed.

This overrides the default key string if one has been defined.

• Source IPv4 —(In Layer 3 system mode only) Select the device IPv4 source

interface to be used in messages for communication with the RADIUS

server.

• Source IPv6 —(In Layer 3 system mode only) Select the device IPv6

source interface to be used in messages for communication with the

RADIUS server.

NOTE If the Auto option is selected, the system takes the source IP address

from the IP address defined on the outgoing interface.

STEP 4 Click Apply. The RADIUS default settings for the device are updated in the

Running Configuration file.

To add a RADIUS server, click Add.

STEP 5 Enter the values in the fields for each RADIUS server. To use the default values

entered in the RADIUS page, select Use Default.

• Server Definition—Select whether to specify the RADIUS server by

IP address or name.

• IP Version—Select the version of the IP address of the RADIUS server.

• IPv6 Address Type—Displays that IPv6 address type is Global.

• IPv6 Address Type—Select the IPv6 address type (if IPv6 is used). The

options are:

- Link Local—The IPv6 address uniquely identifies hosts on a single

network link. A link local address has a prefix of FE80, is not routable, and

can be used for communication only on the local network. Only one link

local address is supported. If a link local address exists on the interface,

this entry replaces the address in the configuration.

Cisco 300 Series Administration Guide

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