Defining The Telnet Idle Time; Changing The Login Timeout Period For Telnet Sessions - Brocade Communications Systems ICX 6650 Security Configuration Manual

Remote access to management function restrictions
To allow SSH access to the Brocade device to a host with any IP address and MAC address
0000.000f.e9a0, enter the following command.
Brocade(config)# ip ssh client any 0000.000f.e9a0
Syntax: [no] ip ssh client any mac-addr
Restricting HTTP and HTTPS connection
You can restrict an HTTP or HTTPS connection to a device based on the client IP address or MAC
address.
To allow HTTP and HTTPS access to the Brocade device only to the host with IP address
10.157.22.40 and MAC address 0000.000f.ab1c, enter the following command.
Brocade(config)# web client 10.157.22.40 0000.000f.ab1c
Syntax: [no] web client ip-addr | ipv6-addr mac-addr
The following command allows HTTP and HTTPS access to the Brocade device to a host with any IP
address and MAC address 0000.000f.10ba.
Brocade(config)# web client any 0000.000f.10ba
Syntax: [no] web client any mac-addr

Defining the Telnet idle time

You can define how many minutes a Telnet session can remain idle before it is timed out. An idle
Telnet session is a session that is still sending TCP ACKs in response to keepalive messages from
the device, but is not being used to send data.
To configure the idle time for a Telnet session, use the following command.
Brocade(config)# telnet timeout 120
Syntax: [no] telnet timeout minutes
For minutes enter a value from 0–240. The default value is 0 minutes (no timeout).

Changing the login timeout period for Telnet sessions

By default, the login timeout period for a Telnet session is 1 minute. To change the login timeout
period, use the following command.
Brocade(config)# telnet login-timeout 5
Syntax: [no] telnet login-timeout minutes
For minutes, enter a value from 1 to 10. The default timeout period is 1 minute.
8 Brocade ICX 6650 Security Configuration Guide
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