I really have way too much time on my hands

[Doron_Beit-Halahmi (Doron Beit-Halahmi (Doc))]

#!/usr/bin/env bash

if [[ $# -lt 1 ]]; then
  echo "Usage: larping <IP> [interface]"
  exit 1
fi

IP="$1"
IFACE="${2:-$(ip route get "$IP" | awk '/dev/ {print $3; exit}')}"

echo "LARPING $IP on $IFACE..."
sudo arping -c 2 -I "$IFACE" "$IP"