There is currently a major limitation on all Omada-Gateways: Link-Backup and Load-Balancing only works for IPv4.

Not in scope of this story is NAT66 to solve the Load-Balancing feature.

This feature-request ist about simply switching the IPv6 Pass-Through to the Link-Backup as well during failover, so when primary WAN (which is IPv6 Pass-through) fails, that the Backup-WAN is used as IPv6 Pass-Through (when enabled/available)