Enhanced native mode allows the Local Manager to automate basic commands for devices for which no advanced driver exists. Using regular expressions, the Local Manager can log in, log out, and recognize the command prompt. Coupled with rules, monitors and the ability to pull and push files using SFTP/SCP/TFTP, the enhanced native driver provides a very significant amount of automated functionality to bridge the gap between native mode and an advanced driver. Enhanced native mode allows users to configure a port such that it will:
Enhanced native settings become available after running config init and selecting enhanced as the device make. Enhanced-specific options are:
|command prompt||[#>]||A regular expression representing the command prompt of the managed device. By default, matches all command prompts that end in # or >.|
|login prompt||sername:\s||A regular expression representing the username prompt. For example, the default value of sername: followed by a whitespace (\s) would match all the prompts "Username:", "Username:", and "Enter Username:"|
|password prompt||ssword:\s||A regular expression representing the password prompt. For example, the default value of ssword: followed by whitespace (\s) would match all the prompts "Password:", "Password:", and "Enter Password:"|
|logout command||exit||The command used to exit the managed device's command line interface. Other examples include logout or quit.|
|wakeup command||\r||The command used to wake up the managed device. In other words, cause the device to present a login prompt when the default line feed will not result in a prompt. For example, if the user must enter CTRL+C key sequence to get a login prompt, then the wakeup command should be \c.|
The default values will not work with all devices. Before running config init, terminal into your device (in native mode or with a workstation) and take note of the various command prompts as well as the login/password prompt.
Some trial and error may be necessary before finding the most robust prompt definition for your device.
Regular expressions are used to specify the command, username, and password prompts for the managed device. Please contact Lantronix Support for assistance creating regular expressions for your specific device. Below are basic operations:
|[ ]||Brackets: Matches any of the characters within the brackets.
Example 1: [#>!] matches a prompt that ends with #, >, or !
Example 2: [~!]# matches a prompt that ends with ~# or !#
||||Pipe: Separates alternative strings.
Example: router>|router# matches a prompt ending in router> or router#
|()||Parentheses: Provides order of operation when evaluating expressions.
Example: router(>|#) matches router first, then either > or # at the end of it. Without the parenthesis, router>|# would match router> and #.
|*||Asterisk: Describes a possibility for zero or more instances of the character preceding it.
Example: pas*word matches paword (zero instances of s), pasword (1 instance), password and passsword (multiple instances).
|\s||Represents any form of whitespace, including tab, newline, space, carriage return, form-feed, etc.|
|Device Configuration||Local Manager Configuration|
|command prompt: >|
|login prompt: ogin:\s|
|password prompt: ssword:\s|
|logout command: exit|
|command prompt: [>#!]|
|login prompt: sername:\s|
|password prompt: ecret:\s|
|logout command: quit|
|command prompt: [$!=]\s|
|login prompt: (mail|
|password prompt: ssword:\s|
|logout command: close|
To configure a port for enhanced native mode, follow these steps. Log in to the Local Manager via SSH or the console management port. Navigate to the port using the port [slot]/[number] command and run config init. When prompted for make, enter enhanced.
[admin@LantronixLM (port1/2)]# config init --- Enter New Values --- description: Extreme 150 make [native]: enhanced model: os: os version: management IP: 192.0.2.111 command prompt [[#>]]: login prompt [sername:\s]: login:\s password prompt [ssword:\s]: logout command [exit\r]: wakeup command [\r]: console username: admin console password: Serial Bit Rate : Serial Data Bit : Serial Parity [none]: Serial Stop Bit : Serial Flow Control [none]: Do you want to commit these changes? (y/n): y
By default, the enhanced native driver waits up to 5 seconds for the managed device to respond (i.e. to present login and password prompts as well as the CLI prompt after issuing a command). Some devices may not respond to the driver quick enough, causing the driver to fail to login or detect the state of the managed device. A port property named Enhanced_TimeoutSeconds can be specified with a timeout value (in seconds) to override the default value - the timeout value can be extended or shortened using this mechanism. For example, to configure this value to 8 seconds, login to the Local Manager, navigate to the enhanced native port, and issue the config properties command as follows:
[admin@LantronixLM]# port 1/1 enhanced [admin@LantronixLM (port1/1)]# config properties [config properties]# Enhanced_TimeoutSeconds 8 [config properties]# exit
To view enhanced native property settings, issue the show properties command at the Local Manager port:
[admin@xyzcoAuz (port1/1)]# show properties Enhanced_CommandPrompt: [#>] Enhanced_LoginPrompt: login:\s Enhanced_LogoutCommand: exit\r Enhanced_PasswordPrompt: ssword:\s Enhanced_TimeoutSeconds: 8 Enhanced_WakeupCommand: \r
If the managed device supports SFTP, SCP or TFTP and supports commands to back up its configuration and OS files to a SFTP/SCP/TFTP server, our Pull/Push SFTP and TFTP command functionality can be used to create automatic file backups for example.