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101

Command Reference Guide Line (Telnet) Interface Config Command Set

access-class <listname> in

Use the access-class in command to restrict Telnet access using a configured access list. Received packets

passed by the access list will be allowed. Use the access list configuration to deny hosts or entire networks

or to permit specified IP addresses.

Syntax Description

Alphanumeric descriptor for identifying the configured access list (all access

list descriptors are case-sensitive). See

ip access-list extended <listname>

page 170 and

ip access-list standard <listname>

on page 176 for more

information on creating access-control lists.

Default Values

By default, there are no configured access lists associated with Telnet sessions.

Command Modes

(config-telnet X)# Line Configuration Mode required.

Command History

Release 1.1 Command was introduced

Functional Notes

When using the

access-class in

command to associate an access list with a Telnet session, remember to

duplicate the

access-class in

command for all configured Telnet sessions 0 through 4. Telnet access to the

unit using a particular Telnet session is not possible. Users will be assigned the first available Telnet session.

Usage Examples

The following example associates the access list

Trusted

(to allow Telnet sessions from the 192.22.56.0/24

network) with all Telnet sessions (0 through 4):

Create the access list:

(config)#

ip access-list standard Trusted

(config)#

permit 192.22.56.0 0.0.0.255

Enter the line (telnet) command set:

(config)#

line telnet 0 4

Associate the access list with the Telnet session:

(config-telnet0-4)#

access-class Trusted in

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