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3. Find

Description

How to find a raspberry on the network.

Scanning

If the raspberry pi is connected to the same network as your computer you can just use a network scan tool.

  1. Find local network range

  • Windows: (not really needed -> the tool will normally pre-fill it for you)

    1. Open commandline:

    Windows-Key+R => powershell => enter

    1. Get ip

    > ipconfig

Ethernet adapter Ethernet:

Connection-specific DNS Suffix  . : random.lan
IPv4 Address. . . . . . . . . . . : 192.168.1.10
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254

  • Linux:

    1. Open terminal

    Ctrl+Alt+T

    1. Get ip

    $ ip a

7: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 group default qlen 1
inet 192.168.1.10/24 brd 192.168.1.255 scope global dynamic

  1. Scan the network for an open ssh port (you must have added the empty ssh file on the boot partition)

  • Windows:

    PortScan

  • Linux:

    • Get the network address (in a /24 network it always is the .0) of you subnet (192.168.1.X/24)

    • You can also just put your data in a subnet calculator like this one from heise

    • You need this for the scan as seen here:

      $ sudo apt install nmap -y
$ sudo nmap -sS -p 22 192.168.1.0/24

# or if you want to connect to the device the 'dirty way':
$ sudo apt install nmap sshpass -y
$ eval "sshpass -p 'raspberry' ssh -o StrictHostKeyChecking=no pi@`sudo nmap -PE 192.168.1.0/24 -T4 -p22 | grep 'report for' | cut -d ' ' -f5` -p22"
# this one will not work if more than one device has port 22 open in the scanned range