6in4 Tunnel Support (Hurricane Electric Tunnel Broker)

I would like to request support for 6in4 tunneling, specifically compatibility with Hurricane Electric’s Tunnel Broker service (https://tunnelbroker.net/).

I rely on this feature to learn and experiment with IPv6. One of my ISPs does not provide native IPv6 service, and a 6in4 tunnel is my primary workaround. This functionality is already supported on Synology devices, Ubiquiti equipment (via CLI), and SonicWall firewalls. Since switching to the Route10, I have lost this capability.

This isn’t a critical issue for my daily operations, but it would be a valuable addition for users who work with IPv6 in similar constrained environments.