(Optional) Configuring Telnet Access Control

An ACL can be configured to allow only specified clients to access a Telnet server.

Context

When a device functions as a Telnet server, you can configure an ACL to allow only the clients that meet the rules specified in the ACL to access the Telnet server.

Perform the following steps on the device that functions as a Telnet server:

Procedure

Run system-view
The system view is displayed.
Run acl { name basic-acl-name { basic | [ basic ] number basic-acl-number } | [ number ] basic-acl-number } [ match-order { config | auto } ]
The ACL view is displayed.
Run rule [ rule-id ] [ name rule-name ] { deny | permit } [ fragment-type { fragment | non-fragment | non-subseq | fragment-subseq | fragment-spe-first } | source { source-ip-address { source-wildcard | 0 | src-netmask } | any } | time-range time-name | [ vpn-instance vpn-instance-name | vpn-instance-any ] ] ^* or rule [ rule-id ] [ name rule-name ] { deny | permit } [ fragment-type fragment | source { source-ip-address { source-wildcard | 0 | src-netmask } | any } | time-range time-name | vpn-instance vpn-instance-name ] ^*
A rule is configured for the ACL.
Run quit
Return to the system view.
Run telnet server acl { acl4name | acl4num } or telnet ipv6 server acl { acl6name | acl6num }
A Telnet ACL is configured.
Run commit
The configuration is committed.