This adds a small wrapper script to configure and start radvd on a
tun interface.
This allows the use of router advertisements and global adresses with
the `native` target.
Usage:
- first create the tap interface as usual
sudo dist/tools/tapsetup/tapsetup
- now run radvd on the new tapbr0 interface
sudo dist/tools/radvd/radvd.sh -c tapbr0 2001:db8::/64
- Now run the `gnrc_networking` example on native:
make -C examples/gnrc_networking all term
You should now see that the `native` node has received a global address
in `ifconfig`.
You should be able to reach this address from your host computer.
It may take very long for the native node to obtain the address.
If you are observing this, try turning off router advertisements of the
native node on the upstream interface by running
ifconfig 6 -rtr_adv
Alternatively change `USEMODULE += gnrc_ipv6_router_default` to
`USEMODULE += gnrc_ipv6_default` in the project's `Makefile`.
