does reqire ifconfig, but not checked

[smokephil]

On my arch-machine without net-tools installed [1], the script doesn't work:

./wp6.sh: Zeile 268: ifconfig: Kommando nicht gefunden.
./wp6.sh: Zeile 280: ifconfig: Kommando nicht gefunden.
./wp6.sh: Zeile 287: route: Kommando nicht gefunden.
./wp6.sh: Zeile 288: route: Kommando nicht gefunden.

If I install net-tools it still doesn't work, without any error messages.

[1] https://www.archlinux.org/news/deprecation-of-net-tools/