cPanel & WHM Version 78 has been released, and brings a slew of great updates. Take a look at what is included, and then upgrade today!
 

Configure a default source route for IPv6

Marc Warne shared this idea 3 years ago
Open Discussion

When new IPv6 addresses are allocated in cPanel, the default source / outgoing route for IPv6 connections is the last IPv6 address to be added. This means that it will change throughout time and is a nightmare when trying to configure a firewall on the other side of the connection.


cPanel's networking setup is not CentOS standard, so there is no reasonable workaround to set a default source route for IPv6.


I suggest that cPanel alter their network configuration scripts for IPv6 to set preferred_lft to zero on all IPv6 addresses bound apart from the first one. That way, the source IPv6 address will be static.