Raspberry pi4 LAN port communition

I use my laptop WiFi to eth0 connected raspberry Pi4.

We use 4 things to do.

1. Putty
2. cmd (window)
3. dhcpcd5
4. Window network Centor

◆ Go to network center and double click wifi.

◆ Open cmd

-> ipconfig

-> arp -a

I fixed my ip but, you can find 192.168.137.X (not 255).

◆ Go to putty and connect SSH.

sudo vim /etc/dhcpcd.conf or sudo nano /etc/dhcpcd.conf

interface eth0
statc ip_address=192.168.137.(number what you want not 0 or 1)/24
static routers=192.168.137.1
static netmask=255.255.255.0

After this, reboot raspberry pi.
And, reconnect ethernet wire.
Then, open the network center.

◆ Connect your fixed ip.

nano save -> ctrl + s nano quit -> ctrl + x vim insert -> i or a vim quit and save -> ESC, :(shift+;)wq

if you don’t have vim editor -> sudo apt-get install vim
if your dhcpcd.conf file is empty -> sudo apt-get install dhcpcd5

◆ tip command
-> route
-> ip route
-> ifconfig

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