Port Access Modes

There are three ways a user can interact with a port:

A user can connect to a device port in one of the following ways:

  1. Telnet or SSH to the Eth1 or Eth2 IP address, or connect to the console port, and log in to the command line interface. At the command line interface, issue the connect direct or connect listen commands.

  2. If Telnet is enabled for a device port, Telnet to <Eth1 IP address>:<telnet port number) or <Eth2 IP address>:<telnet port number>, where telnet port number is uniquely assigned for each device port.

  3.  If SSH is enabled for a device port, SSH to <Eth1 IP address>:<ssh port number) or <Eth2 IP address>:<ssh port number>, where ssh port number is uniquely assigned for each device port.

  4. If a device port has a Telnet/SSH IP address assigned to it, Telnet or SSH to the IP address.

  5. Connect a terminal or a terminal emulation program directly to the device port. If logins are enabled, the user is prompted for a username and password and logs in to the command line interface.

For #2, #3, #4, and #5, if logins are not enabled, the user is directly connected to the device port with no authentication.

For #1 and #5, if logins are enabled, the user is authenticated first, and then logged into the command line interface. The user login determines permissions for accessing device ports.

The administrator and users with local user rights assign individual port permissions to local users (see Local User Permissions). The administrator and users with remote authentication rights assign port access to users authenticated by NIS, RADIUS, LDAP, Kerberos and TACACS+ (see Remote User Permissions).  

Note:  You can configure NIS to provide port permissions (see the User Guide for more information).

 

See also

User Authentication Methods

Local User Rights