Unable to remove IPv6 address from Plesk: Cannot remove the IP address because it is the last IP address present on a network interface.

Created:

2016-11-16 13:04:42 UTC

Modified:

2017-08-08 13:28:18 UTC

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Unable to remove IPv6 address from Plesk: Cannot remove the IP address because it is the last IP address present on a network interface.

Applicable to:

  • Plesk

Symptoms

Unable to remove an IPv6 address from Plesk > Tools & Settings > IP Addresses with error:

Cannot remove the IP address  0:0:0:0:0:ffff:a27:5293 because it is the last IP address present on a network interface.

Cannot remove the IP address 0:0:0:0:0:ffff:a27:5293 because it is the primary IP address of a network interface.

There is an IPv4 address on the same interface.

No websites are using this IPv6 address.

Cause

This is an internal issue with ID #PPPM-3818 , which is planned to be fixed in future product updates.

Workaround

Use any of the following workarounds:

  1. Hide IPv6 address:

    • Make sure that there is no subscriptions or reseller accounts assigned on this IP address.

    • Open /usr/local/psa/admin/conf/panel.ini (on Linux) or %plesk_dir%\\admin\\conf\\panel.ini (on Windows) configuration file for editing (create the file if necessary) and add the following lines to it:

      [ip]
      blacklist="<IP addresses to be hidden>"
    • Open Plesk > Tools & Settings > IP Addresses and click Reread IP button.

    Note: Hiding an IP address already assigned to one or more subscriptions will result in the The IP address is already used for hosting error. The IP address will be marked as blacklisted in Tools & Settings > IP Addresses , but will be available in the Plesk interface.

  2. Remove IPv6 address manually:

    • Make sure that there is no subscriptions or reseller accounts assigned on this IP address.

    • Remove IP address manually from network interface.
      Note: Before removing an IP address double check that there is no websites assigned to this IP address in Plesk. If IP address is not in use, in Plesk > Tools & Settings > IP Addresses values Resellers and Sites of this IP address will be 0 .

    • Open Plesk > Tools & Settings > IP Addresses and click Reread IP button.

    • Select IP address that needs to be removed (it will be marked as broken ) and click Remove button.

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