Routed IPv6 prefix in 6in4 WAN connectivity is not marked as mandatory but required to be filled in
While setting up the 6in4 connectivity, I have found that I cannot save the configuration unless the Routed IPv6 prefix
is specified. According the UCI network cheatsheet, the value is not mandatory, but as we do not offer the ability to specify the IPv6 address of the local end of the tunnel, the Routed IPv6 prefix
should be marked as mandatory.