Issue IPv6 Not Reachable from Outside

[Jack Stringer]

Cup of tea Drunk

My site w4x4r.org.uk is running on a VPS from 1and1.
CentOS 6.9 (Final)‬
Plesk Onyx Version 17.5.3 Update #16, last updated on Aug 1, 2017 04:37 PM

Running a tests online using any popular "Is my site IPv6 Ready" will show a AAA record exists but the site isn't reachable (see my recent Issue with Lets Encrypt).

Every time I restart the VPS I will get an issue with the IP addresses assigned to the VPS. So I have to go to
Tools & Settings>IP Addresses then select "Reread IP" then "Fix Problems". Then rebuild the configs using "Webserver Configurations Troubleshooter" otherwise nginx & apache won't work properly.

The IP addresses I have are, 2001:8d8:88b:3100::39:c926 & 87.106.66.89

Any clue on how I can figgue out what the issue is?

 

[IgorG]

Please try to use solution from KB article IPv6 addresses are not added to /etc/network/interfaces file

 

[Jack Stringer]

# plesk bin ipmanage -l
State Type IP                                  Clients Hosting PublicIP
0     S    eth0:87.106.66.89/255.255.255.255   0       10      87.106.66.89
0     S    eth0:2001:8d8:88b:3100::39:c926/128 0       10      2001:8d8:88b:3100::39:c926

I did try it though and,

# plesk bin ipmanage --create 2001:8d8:88b:3100::39:c926 -type shared -mask 128 -interface venet0
IP address 2001:8d8:88b:3100::39:c926 already exists.

I did attempt to remove (so I could add it back) but as sites have it listed against the IPv6 it won't let me.