Ticket #88. Correctly use the parameter returned from link_interface_to_bridge to actually set the flags on the interface being configured the same as the bridge. While here simplify gre/gif handling too.
Related issues
Bug #88: TXCSUM forced on at boot which breaks wireless bridging
Ticket #88. Correctly use the parameter returned from link_interface_to_bridge to actually set the flags on the interface being configured the same as the bridge. While here simplify gre/gif handling too.