Verify that the following pre-requisites are met before using the SSH key update tool.
Arctic wireless devices use firmware Ver.3.4.8 or newer.
ARM600 M2M Gateway uses firmware Ver.4.5.3 or newer.
Arctic Patrol is configured and enabled in all devices to be updated.
The firmware version is shown in the Status screen of the Arctic wireless gateways and ARM600 M2M Gateway. Once the firmware versions and Arctic Patrol functionality have been verified, the following update process can be used.
Log in to ARM600's WHMI, click Arctic Patrol and select Devices.
Select the Arctic wireless devices to be updated from the device list by selecting the check-box in the beginning of each device’s information row.
Click Arctic Patrol and select Management.
Click Update SSH-VPN public key.
The tool checks that all the selected devices have the correct firmware version to perform the update.
Click Next and select the key size.
Click Start.
A Patrol batch run is created and the update process begins.
Figure 1. Updating SSH-VPN key
The SSH key update tool creates a new SSH key pair for every device, stores the public part of the key in ARM600 and takes the new key into use on ARM600 and the Arctic wireless device.
Note: If Arctic Patrol is configured to be connected via the SSH protocol and Patrol uses the same SSH key as SSH-VPN, the SSH key update tool also updates the key for Patrol.
Note: If Arctic Patrol is configured to be connected via the SSHVPN tunnel and the key update batch fails for any reason, the Patrol connection may end up in an unusable state.
Note: The Arctic devices must be rebooted to take the new SSH keys in use.