6Brocade ICX 6650 Security Configuration Guide
53-1002601-01
Remote access to management function restrictions
NOTE
You must enable AAA support for console commands, AAA authentication, and Exec authorization in
order to set the console idle time.
To configure the idle time for a serial console session, use the following command.
Brocade(config)# console timeout 120
Syntax: [no] console timeout minutes
Possible values for the minutes variable: 0–240 minutes
Default value: 0 minutes (no timeout)
NOTE
In RADIUS, the standard attribute Idle-Timeout is used to define the console session timeout value.
The attribute Idle-Timeout value is specified in seconds. Within the switch, it is truncated to the
nearest minute, because the switch configuration is defined in minutes.
Remote access restrictions
By default, a Brocade device does not control remote management access based on the IP address
of the managing device. You can restrict remote management access to a single IP address for the
following access methods:
Telne t acc ess
SSH access
SNMP access
In addition, you can restrict all access methods to the same IP address using a single command.
The following examples show the CLI commands for restricting remote access. You can specify only
one IP address with each command. However, you can enter each command ten times to specify
up to ten IP addresses.

Restricting Telnet access to a specific IP address

To allow Telnet access to the Brocade device only to the host with IP address 10.157.22.39, enter
the following command.
Brocade(config)# telnet-client 10.157.22.39
Syntax: [no] telnet-client ip-addr | ipv6-addr

Restricting SSH access to a specific IP address

To allow SSH access to the Brocade device only to the host with IP address 10.157.22.39, enter the
following command.
Brocade(config)# ip ssh client 10.157.22.39
Syntax: [no] ip ssh client ip-addr | ipv6-addr