Recovery Procedure for PTP 650/670/700

Products PTP
1

Summary

PTP 650/670/700 units can be defaulted to factory setting using the power cycle recovery procedure. The document explains the recovery procedures and the conditions or situations for the radio recovery.

Cause

When there is a serious configuration errors, lost or forgotten passwords and unknown IP addresses. Recovery mode also allows new main application software to be loaded even when the integrity of the existing main application software image has been compromised. The most likely cause of an integrity problem with the installed main application software is where the power supply has been interrupted during an earlier software upgrade.

Solution

The PTP 650/670/700 recovery mode provides a means to recover from serious configuration errors including lost or forgotten passwords and unknown IP addresses.

The ODU operates in recovery mode in the following circumstances:

  • When a checksum error occurs for the main application software image.
  • When a power on, power off, power on cycle is applied to the ODU with the power off period being around 5sec.

Recovery mode supports a single IPv4 interface, with IP address 169.254.1.1, and with default link settings. Recovery mode does not support IPv6.

Note:
When Recovery has been entered through a power on/off/on cycle, the ODU will revert to normal operation if no web access has been made to the unit within 30 seconds. This prevents the unit remaining inadvertently in recovery following a power outage.

Recovery mode options in recovery mode (IPv4 only) are as follows:

  • Load new main application software.
  • Reset all configuration data. This option resets IP, Ethernet and security configuration
  • Reset IP and Ethernet configuration.
  • Reset (zeroize) critical security parameters.
  • Reboot with existing software and configuration.

If recovery mode has been entered because of a checksum error, after a 30 second wait the ODU will attempt to reboot with existing software and configuration. The recovery software image is installed during manufacture of the ODU and cannot be upgraded by operators.

Entering recovery mode

Use this procedure to enter recovery mode manually.

Note
The unit may enter recovery mode automatically, in response to some failures. Once the unit has entered recovery, it will switch back to normal operation if no access has been made to the recovery web page within 30 seconds.

Procedure:

  1. Apply power to PSU for at least 10 seconds.

  2. Remove power for two seconds.

  3. Re-apply power to the PSU.

  4. When the unit is in recovery mode, access the web interface by entering the default IP address 169.254.1.1. The Recovery Image Warning page is displayed:

    Picture1

  5. Click on the warning page image. The Recovery Option Page is displayed:

    Picture2

  6. Review the Software Version and Recovery Reason.

    Picture3

  7. Select a recovery option.

    Picture4

Upgrading software image

Use this option to restore a working software image from the Recovery Options page.

Procedure:

  1. Click Browse.

  2. Navigate to the required software image. This may be the most recent image if software corruption is suspected, or an older image if an incorrect image has just been loaded. Click on the image and click Open.

  3. Click Upgrade Software Image. The Confirmation page is displayed. Click Program Software Image into Non-Volatile Memory. The Upgrade Progress Tracker page is displayed:

    Picture5

  4. When the Software Upgrade Complete page is displayed, check that the correct image has been downloaded:
    Picture6

  5. Click Reboot Wireless Unit. When the “Are you sure?” message is displayed, click OK.

  6. The unit will now reboot and restart in normal operational mode, and the link should recover.

Note
The unit will not upload FIPS versions of the software unless the unit has the AES encryption and FIPS licenses installed.

Resetting IP & Ethernet configuration

Use this option in the Recovery Options page to reset IPv4, IPv6 and Ethernet configuration to default values.

This procedure resets the IP Version attribute to IPv4. It also resets the IPv6 configuration. The reset action affects the following attributes:

  • IP Version
  • IPv4 Address
  • Subnet Mask and Gateway IP Address
  • use VLAN For Management Interfaces
  • VLAN Management VID
  • VLAN Management Priority
  • IPv6 Address and IPv6 Prefix Length along with IPv6 Gateway Address
  • Data Service • Management Service
  • Local Management Service
  • Data Port Wireless Down Alert Management Port Wireless Down Alert
  • Main PSU Port Auto Negotiation
  • Main PSU Port Auto Neg Advertisement
  • Main PSU Port Auto Mdix
  • Aux Port Auto Negotiation
  • Aux Port Auto Neg Advertisement
  • Aux Port Auto Mdix
  • Aux Port Power Over Ethernet Output
  • SFP Port Auto Negotiation
  • SFP Port Auto Neg Advertisement
  • SFP Port Auto Mdix
  • Local Packet Filtering
  • SNMP Access Control, Access Control and IP Address Label

Procedure:

  1. Click Reset IP & Ethernet Configuration back to factory defaults. The reset pop up box is displayed:
    Picture7

  2. Record the IP address, as it will be needed to log into the unit after recovery.

  3. Click OK. The reset confirmation page is displayed:

    Picture8

  4. Click Reboot.
    When the “Are you sure you want to REBOOT this unit?” message is displayed, click OK.

  5. The unit will now reboot. The unit should now start up in normal mode but with the IP and Ethernet configuration reset to factory defaults.

Resetting all configuration data

Note
Wireless Topology is not reset by this procedure.

Use this option in the Recovery Options page to reset the entire configuration of the unit (including IP, Ethernet and CSPs) to default values.

Procedure:

  1. Click Erase Configuration. The erase pop up box is displayed:

    Picture9

  2. Click OK. The erase confirmation page is displayed:

    Picture10

  3. Click Reboot. When the confirmation message is displayed, click OK.

  4. The unit reboots and starts up in normal mode but with all configuration reset to default values.

Zeroize Critical Security Parameters

Use this option in the Recovery Options page to reset the security configuration of the unit to default values. This action includes the following attributes:

  • Key of Keys
  • Local User Accounts Names, Roles and Passwords
  • Encryption Algorithm
  • Wireless Encryption Key
  • HTTPS Private Key
  • HTTPS Public Key Certificate
  • Random Number Generator Entropy
  • User-supplied Device Private Key
  • HTTP Access Enabled
  • HTTP Port Number
  • SNTP server keys for SHA1
  • SNTP server authentication protocol
  • SNTP server key identifier
  • SNMPv3 USM authentication keys
  • SNMPv3 USM privacy keys

Procedure:

  1. Click Zeroize Critical Security Parameters. The confirmation pop up box is displayed:

    Picture11

  2. Click OK. The zeroize CSPs confirmation page is displayed:

    Picture12

  3. Click Reboot.
    When the “Are you sure you want to REBOOT this unit?” message is displayed, click OK.

  4. The unit will now reboot. The unit should now start up in normal mode but with the security configuration reset to default values.

Rebooting the unit

Use this option to reboot the unit from the Recovery Options page.

Procedure:

  1. Click Reboot.
  2. When the “Are you sure you want to REBOOT this unit?” message is displayed, click OK. The unit will now reboot. The unit should now start up in normal operational mode.
2 Likes