Better late than never: our package repository, the download server and the mirror servers for RHEL 8, 9 and 10 are reachable over IPv6. Hosts in IPv6-only networks get their packages directly, without NAT64 or a proxy.
All services run dual-stack, IPv4 stays as it is.
curl shows whether your host takes the IPv6 path:
$ curl --ipv6 --head https://repo.linuxfabrik.ch/
Firewalls with rules per IP address. If you allow outgoing traffic to our servers by address, add the IPv6 addresses (excerpt):
$ dig +short AAAA repo.linuxfabrik.ch
$ dig +short AAAA mirror-rhel9.linuxfabrik.ch
Access to the mirror servers by IP address. Besides username and password, we also grant access to the mirror servers by source address. These grants apply per address family. A host with IPv6 whose network is registered with us by its IPv4 address only gets a 401 Unauthorized over IPv6. In that case, send us your IPv6 prefix, or use username and password.
Moving your Linux servers to dual-stack, or need access to the mirror servers? Have a look at our mirror servers and get in touch.