WHM IPv6 Range Assignment issue

ysk

Registered
Jun 30, 2012
3
0
1
cPanel Access Level
Root Administrator
I have been assigned with IPv6 (/64) range from provider for my cPanel VPS, now issue is, out of which one IPv6 belongs to network gateway in that range.

Example Range:

IPv6 Range: 2001:0db8:85a3::/64
Start Range: 2001:db8:85a3:0:0:0:0:0
End Range: 2001:db8:85a3:0:ffff:ffff:ffff:ffff

Now out of which 2001:db8:85a3:0:0:0:0:1 is Gateway

When i use WHM -> Enable IPv6
It assigns IPv6 to website from range which without filtering out getway IPv6 address from range.

Can someone tell me what is right way to avoid IPv6 conflict and how to avoid WHM to assign Gateway IPv6 to domain?

Thank you
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,913
2,202
363
Hello :)

Could you open a support ticket so we can take a closer look at this issue and determine if an internal case is necessary? You can post the ticket number here so we can update this thread with the outcome.

Thank you.
 

tsiedsma

Active Member
Nov 1, 2006
27
0
151
US
cPanel Access Level
Root Administrator
I'm seeing this same issue. I added my range as 2a03:8180:1001:XXXX::/64 to cPanel and it tried to assign 2a03:8180:1001:XXXX:: and 2a03:8180:1001:XXXX::1 to accounts when I click enable ipv6 on an account. Shouldn't those addresses be skipped by default and not have to be excluded manually?
 

tsiedsma

Active Member
Nov 1, 2006
27
0
151
US
cPanel Access Level
Root Administrator
The following third-party tool provides the start and end IPv6 address for an IPv6 address range using CIDR notation:

https://www.ultratools.com/tools/rangeToipv6CIDR

Could you verify exactly how you added the range in Web Host Manager?

Thank you.
Hi, I added the range to WHM as 2a03:8180:1001:XXXX::/64
Edit:, I've now added the range as 2a03:8180:1001:XXXX:0:0:1:0/112 since there is really no need for that many addresses on a cPanel server. This will eliminate the previous issue but I believe it is still an issue that needs addressing.

On a side note, is there a public roadmap for the future of ipv6 support in cPanel? It's been almost a year since the blog post that announced the Apache support and the current implementation of ipv6 support. Aren't we due for some added ipv6 support?
 
Last edited:

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,913
2,202
363
Edit:, I've now added the range as 2a03:8180:1001:XXXX:0:0:1:0/112 since there is really no need for that many addresses on a cPanel server. This will eliminate the previous issue but I believe it is still an issue that needs addressing.
Please ensure you submit bug reports for flaws in the product:

Submit A Bug Report

On a side note, is there a public roadmap for the future of ipv6 support in cPanel? It's been almost a year since the blog post that announced the Apache support and the current implementation of ipv6 support. Aren't we due for some added ipv6 support?
A public road map is not available, but we are happy to hear your feedback. What missing IPv6 functionality are you most in need of? Is there a particular service that you would like to see IPv6 support with sooner than other services?

Thank you.
 

wswd

Well-Known Member
Aug 9, 2005
141
16
168
cPanel Access Level
Root Administrator
Had the same problem as well. What I did was simply create a bogus subdomain and have that get assigned the gateway IP. Then subsequent domains would not be assigned that address.
 

cPanelKenneth

cPanel Development
Staff member
Apr 7, 2006
4,607
77
308
cPanel Access Level
Root Administrator
On a side note, is there a public roadmap for the future of ipv6 support in cPanel? It's been almost a year since the blog post that announced the Apache support and the current implementation of ipv6 support. Aren't we due for some added ipv6 support?
What additional functionality with IPv6 are you seeking?

Please consider adding your vote to our existing IPv6 feature requests: Search Results (8) - | cPanel Feature Requests

If you don't see there the functionality you want, please add a request.

Thank you.