scripts/arp_neigh_loop

#!/bin/sh

#
# Copyright (c) 2016 Wi-Fi Alliance
# 
# Permission to use, copy, modify, and/or distribute this software for any 
# purpose with or without fee is hereby granted, provided that the above 
# copyright notice and this permission notice appear in all copies.
# 
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 
# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER 
# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
# USE OR PERFORMANCE OF THIS SOFTWARE.
#

flag=0
i=0
var=()
#declare -a var
v6add=0
interface=$(ifconfig $1)
interface=${interface// /$'\n'}
for word in $interface
do
  if [ $word = "HWaddr" -o $word = "inet" -o $word = "addr:" ];then
     flag=1
  else
     if [ $flag -eq 1 ];then
	 var[$i]=$word	
	 flag=0
	 ((i=i+1))
     fi
  fi
done
echo "${var[0]}  ${var[1]##*:} ${var[2]} "
v6add=$(echo ${var[2]} | cut -f1 -d/)
set -x
while true; do 
send_arp ${var[1]##*:} ${var[0]} ${var[1]##*:} 00:00:00:00:00:00 $1 ${var[0]} ff:ff:ff:ff:ff:ff request
sleep 5
send_arp ${var[1]##*:} ${var[0]} ${var[1]##*:} ${var[0]} $1 ${var[0]} ff:ff:ff:ff:ff:ff reply
sleep 5 ;
ndsend  $v6add $1
sleep 5;
done