All three tunnel devices now forward encapsulated packets to their
parent interface via DeviceList lookup, instead of dropping them
(R43 drop fix) or self-looping (original behavior).
Changes (same pattern as VLAN R63 fix):
- Add devices: Rc<RefCell<DeviceList>> field to struct
- Add devices parameter to constructor
- send() looks up parent by name and forwards encapsulated frame
- Falls back to debug log on parent-not-found
VlanDevice already integrated (R63). Bond device already correct
(forwards to slaves, no fix needed).
All 31 tests pass.
Red Bear OS
d9140ab7c3