This[0] change is interesting for home deployments of IPv6: If your ISP changes advertised prefixes occasionally (which mine does), it was until now not practical to assign/use addresses with fixed host suffixes, e.g. for internal services, because you couldn't write firewall rules using those addresses (part of the address could just change and there's no automatic update of the rules).
The change now enables you to write firewall rules that use a placeholder for the ISP-assigned prefix. The rules should update automatically after a prefix change.
(What has always worked is using the fc00 or fd00 address spaces for local fixed assignments, but pfSense has had problems with that setup as well in my experience)
The change now enables you to write firewall rules that use a placeholder for the ISP-assigned prefix. The rules should update automatically after a prefix change.
(What has always worked is using the fc00 or fd00 address spaces for local fixed assignments, but pfSense has had problems with that setup as well in my experience)
[0]: https://redmine.pfsense.org/issues/6626