Script to simulate multiple DHCP clients

#!/bin/sh

#simulate 255 IPhones requesting DHCP

 

 

# Apple OUI = D8:96:95

BASE="d8:96:95:08:96"

FROM=$1

shift

TO=$2

 

if [ -e $FROM ]; then FROM=1; fi

if [ -e $TO ]; then TO=1; fi

 

for i in `seq $FROM $TO`

do

    LSB=`echo "obase=16; $i" | bc`

    MAC="$BASE:$LSB"

    HNAME="`uname -n`-fakehost-$i"

    #CMD="$HOME/bin/dhtest -m $MAC -V -i eth1 -h '$HNAME'"

    CMD="$HOME/bin/dhtest -m $MAC -i eth1 -h '$HNAME'"

    echo $CMD

    $CMD

    sleep 1

done

Another way, the program dhtest (source code) can be download from  https://github.com/saravana815/dhtest.  

For example:

 

git clone https://github.com/saravana815/dhtest

cd dhtest

make