get IP from Raspberry in Network

get_rpi_ip.bat

@echo off
REM run on windows in elevated cmd line

REM clear arp cache
arp -d

REM TODO: get correct subnet

REM bruteforce through the network
for /L %%a in (1,1,254) do @start /b ping 192.168.0.%%a -w 100 -n 2 >nul

echo Waiting for pings to return
ping 127.0.0.1 -n 60 > nul

REM list arp cache
REM find IPs with mac like: b8-27-eb-..
arp -a | find "b8-27-eb-"

get_rpi_ip.sh

#!/bin/bash

if [ "$#" -lt 1 ]
then
  echo "start with $0 wifi0"
  echo "check with ifconfig to list your interface names"
  exit 1
fi

# run on linux
broadcast=`ifconfig $1 | grep -o --color="never" "cast [0-9\.]*" | sed "s/cast //#g"`

broadcast_end="${broadcast##*.}"
subnet="${broadcast%.*}"

echo Broadcasting: ${subnet}.${broadcast_end}

echo Enter sudo mode to clear existing arp cache

# clear arp cache
sudo ip -s -s neigh flush all 2>&1 >/dev/null 

# bruteforce through the network
for ip in $(seq 1 $broadcast_end); do (ping -W 500 -c1 -t 1 ${subnet}.${ip} 2>&1 >/dev/null &) done

echo Waiting for pings to return
sleep 1m 

# list arp cache
# find IPs with mac like: b8-27-eb-..
arp -a | grep "b8:27:eb:"

ssh.service

 # another way to find the rpi is to add a avahi broadcast service to the rpi 
 # this will be broadcast
 # sudo vi /etc/avahi/services/ssh.service

<service-group>
<name replace-wildcards="yes">%h</name>
<service>
<type>_ssh._tcp</type>
<port>22</port>
</service>
</service-group>

# restart service on rpi
systemctl restart avahi-daemon.service 

# find rpi with
avahi-browse -t -d local _ssh._tcp --resolve

ssh <raspiname>.local