An issue arrises when a router is not connected to a wan and only meshes.
The wan is not connected to anything, yet tunneldigger tries to make a
connection anyhow. To aviod this, the init script has been modified
to _not_ make tunnels when they are configured with the bind_interface
option. Additionally, a hotplug script has been created to create
and destroy tunnels on demand as the interfaces go up and down. The
hoplug script only works with tunnels configured with the bind_interface
option.
More info at https://github.com/freifunk-berlin/firmware/issues/606
Signed-off-by: pmelange <isprotejesvalkata@gmail.com>
