Documentation forNetwork Configuration Manager

Change the community string on multiple nodes

This procedure replaces the public read-only community string with a new read-only community string on several network nodes at the same time.

  1. Click My Dashboards > Network Configuration > Jobs.
  2. Click Create New Job.
  3. Name the job, and select Execute Command Script on Devices from Job Type.
  4. Specify when the job runs:

    • To run the job once or on a simple schedule, select Basic. Click the tab that identifies how frequently the job runs, and then specify the start time and (if needed) the day(s).

    • To create a more complex schedule, select Advanced and then use the five fields to create a CRON expression.

  5. Add a comment if this job relates to a business rule, and click Next.
  6. Select the nodes to target with this job, and click Next.
  7. Select an email notification option, and click Next. If you click Email Results, the default email notification and SMTP server settings are populated. These settings can be overridden in each job.
  8. Add the script to execute.
    • If you want to load a saved script, click Load Saved Script, and select a script.
    • If you want to load an existing script from disk, click Load Script from File, browse to the file, and click Open.
    • If you want to create a new script, enter your script in the text box. For example:
    • config t
      no snmp-server community public RO
      snmp-server community 123@dm1n RO
      exit
      wr mem

      Where 123@dm1n is the new community string.

  9. If you want to save a script, click Save Script, specify a location, and click Save.
  10. Select Filter Results that match a pattern if you want to see in the script output only those lines that match a specific regular expression pattern.
  11. Select Show Commands in Output to view what NCM sent to the targeted devices.
  12. Click Next.
  13. Review the settings for the job, and click Finish.

Verify success by comparing configs

  1. Click My Dashboards > Network Configuration > Configuration Management.
  2. Select one or more nodes, and click Compare Node(s) Configs.
  3. Select a config from each list.
  4. Click Compare Selected. Changes to are highlighted in red, green, and yellow.