Network sharing¶
Say you have a laptop with Internet connection via Wi-Fi and a Pi with Ethernet connection to the laptop. You might need to access the internet from the Pi.
To do it this way, we have an Ethernet cable wired directly from the laptop to the Pi.
On the laptop, run
nmcli device
to see the network connections. Look at the device that has Ethernet. On my laptop it is eth0.
We need to run a command of the form
nmcli connection add con-name <name> type ethernet ifname <iface> ipv4.method shared ipv6.method ignore
For me, I’ll use
nmcli connection add con-name sharedinternet type ethernet ifname eth0 ipv4.method shared ipv6.method ignore
Then, we can activate the connection:
nmcli connection up sharedinternet
By default, all IP addresses are allocated behind 10.42.0.1/24 (IP addresses between 10.42.0.0 and 10.42.0.255). Therefore, you could run nmap 10.42.0.1/24 or use Angry IP Scanner or another scanner in order to find the Pi’s IP address.