Brocade Communications Systems 6650 manual Setting authentication-method lists for Radius

RADIUS security

Setting the timeout parameter

The timeout parameter specifies how many seconds the Brocade device waits for a response from the RADIUS server before either retrying the authentication request, or determining that the RADIUS server is unavailable and moving on to the next authentication method in the authentication-method list. The timeout can be from 1 – 15 seconds. The default is 3 seconds.

Brocade(config)# radius-server timeout 5

Syntax: radius-server timeout number

Setting RADIUS over IPv6

Brocade devices support the ability to send RADIUS packets over an IPv6 network.

To enable the Brocade device to send RADIUS packets over IPv6, enter a command such as the following at the Global CONFIG level of the CLI.

Brocade(config)# radius-server host ipv6 3000::300

Syntax: radius-server host ipv6 ipv6-host address

The ipv6-host address is the IPv6 address of the RADIUS server. When you enter the IPv6 host address, you do not need to specify the prefix length. A prefix length of 128 is implied.

Setting authentication-method lists for RADIUS

You can use RADIUS to authenticate Telnet/SSH access and access to Privileged EXEC level and CONFIG levels of the CLI. When configuring RADIUS authentication, you create authentication-method lists specifically for these access methods, specifying RADIUS as the primary authentication method.

Within the authentication-method list, RADIUS is specified as the primary authentication method and up to six backup authentication methods are specified as alternates. If RADIUS authentication fails due to an error, the device tries the backup authentication methods in the order they appear in the list.

When you configure authentication-method lists for RADIUS, you must create a separate authentication-method list for Telnet or SSH CLI access and for CLI access to the Privileged EXEC level and CONFIG levels of the CLI.

To create an authentication-method list that specifies RADIUS as the primary authentication method for securing Telnet access to the CLI.

Brocade(config)# enable telnet authentication

Brocade(config)# aaa authentication login default radius local

The commands above cause RADIUS to be the primary authentication method for securing Telnet access to the CLI. If RADIUS authentication fails due to an error with the server, local authentication is used instead.

To create an authentication-method list that specifies RADIUS as the primary authentication method for securing access to Privileged EXEC level and CONFIG levels of the CLI.

Brocade(config)# aaa authentication enable default radius local none

Brocade ICX 6650 Security Configuration Guide	51
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