6to4 address is optional but reForis states that it is required
Summary
IPv4 address for 6to4 is optional as it can be detected but might not be always. Problem is that shows filed red with message Public IPv4 address is required.
while underneath it there is help In order to use 6to4 protocol, you might need to specify your public IPv4 address manually (e.g. when your WAN interface has a private address which is mapped to public IP).
Steps To Reproduce
- Navigate to Network settings / WAN
- Select IPv6 protocol 6to4