#!/bin/bash

if [[ -n "$BLOCK_INSTANCE" ]]; then
  IF="$BLOCK_INSTANCE"
else
  IF=$(ip route | awk '/^default/ { print $5 ; exit }')
fi

if [[ ! -d "/sys/class/net/$IF" ]]; then
   echo " no network interface "
   echo "not found"
   echo ""
   exit 33
fi

echo $IF

WAN_IP=$(curl -s checkip.dyndns.org | sed -e 's/.*Current IP Address: //' -e 's/<.*$//')
LAN_IP=$(ip addr | gawk '/

echo "$IP"
echo "$IP"
echo ""