-- ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
-+ /sbin/ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
+- ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
+- ip route add default dev "$2" metric "$METRIC" scope link ||:
++ /sbin/ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
++ /sbin/ip route add default dev "$2" metric "$METRIC" scope link ||: