When a serial port is connected to the console port on a device, a Console Access Server (CAS) profile must be defined for the serial port.Selecting the appropriate connection protocol on the Ports > Physical Ports > General is part of defining the CAS profile.
• When a user access the serial port through the Web Manager, the session automatically uses the specified protocol to connect to the console of the connected device.
• When a user logs in remotely to the serial port, access is allowed only for the selected protocol. If another protocol is used then access is denied. For example, if you specify the “Console (SSH)” protocol, the user can use SSH but cannot use Telnet to access the serial port.The following table shows the options from the list of connection protocols when ACS serial port is connected to the console port of a server or a device.
Authorized users can use Telnet to connect to the console of the connected device. Authorized users can use SSH to connect to the console of the connected device. Console (TelnetSSH) Authorized users can use Telnet and/or SSH to connect to the console of the connected device simultaneously. When multiple sessions feature is configured, simultaneous Telnet and/or SSH sessions are allowed through the serial port. Authorized users can make a Raw Socket connection to the console of the connected device.