[SOLVED] Error setting ipv6 on Plesk

[Agauser]

Background: Server with 4 domains. Centos 6.7
Plesk was upgraded some days ago to 12.5.30_build1205150826.19. No problem these days.

Just added new domain, during setup no ipv6 was added as was no planned initially. Everything ok, new web y Wordpress, old web in html copied to archive directory and phopbb forum running also ok.

Emails from Plesk came rejected from Gmail (the destination mail account for new customer) for a problem with ipv6 so decided to add an ipv6 to this customer/domain/suscription. Couldn't achieve. Neither on IP addresses on Tools section.

I went back to IP Addresses on Tools and tried to assign IPv6 to domain with no results.

When trying to reread I receive this error:

[root@www ~]# /usr/local/psa/bin/ipmanage --reread
IP addresses were reread from the system.[2016-01-25 09:52:17] ERR [util_exec] proc_close() failed ['/usr/local/psa/admin/bin/apache-config' '-t'] with exit code [1]
[2016-01-25 09:52:19] ERR [panel] Apache config (14537119370.09169300) generation failed: Template_Exception: Syntax error on line 26 of /etc/httpd/conf/plesk.conf.d/server.conf:
The address or port is invalid

file: /usr/local/psa/admin/plib/Template/Writer/Webserver/Abstract.php
line: 75
code: 0​

Also, a new IP is listed at top of IP list:

IP Address Interface IP Type Resellers Sites
/0.0.0.0 eth0 dedicated 0 0​

And also a new error on one of the shared available IPv6 addresses (is from other working domain):

This IP address is not configured properly. Repair​

If I click on repair this error is showed:

Error: ifmng failed: SIOCSIFADDR: File exists /sbin/ifconfig eth0 add 2a01:...::3/64 exited with non-zero status 1​

In Webserver Configurations Troubleshooter I also obtain this error:

Error: New configuration files for the Apache web server were not created due to the errors in configuration templates: Syntax error on line 26 of /etc/httpd/conf/plesk.conf.d/server.conf: The address or port is invalid. Search in KB​

Any help on how to resolve this issue and how can I add IPv6 addresses? Don't want to remove the IPv6 addresses that are assigned to the domains in case they couldn't be added later

 

[IgorG]

Please check if it is your case - https://kb.odin.com/en/120431

 

[Agauser]

But as far as I see all IP addresses are OK on Plesk and ifconfig

 

[Agauser]

Sorry. I have no problem on deleting the IP 0.0.0.0 from the panel. When I Reread the IPs then it's newly inserted. So the problem must be at some other config.

 

[Agauser]

How can I contact support?

 

[IgorG]

How can I contact support?

https://plesk.com -> Support

 

[Agauser]

Finally they resolved. Problem was that at some time Plesk setup an IPv6 with Scope Global ( /0 instead of /64 ). Once it was fixed with the right netmask everything turned to go fine as I could check.
Thanks.