Iot-protocolsHow-ToBeginner · 4 min read

How to Set Static IP on Raspberry Pi Quickly and Easily

To set a static IP on Raspberry Pi, edit the /etc/dhcpcd.conf file and add your static IP configuration at the end. Then restart the networking service or reboot the Pi to apply the changes.

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Syntax

The static IP configuration is added in the /etc/dhcpcd.conf file using this pattern:

interface [interface_name]: specifies the network interface (e.g., eth0 for wired, wlan0 for Wi-Fi).
static ip_address=[IP_address]/[subnet_mask]: sets the static IP and subnet mask.
static routers=[gateway_IP]: sets the default gateway IP.
static domain_name_servers=[DNS_IPs]: sets DNS servers for name resolution.

bash

interface eth0
static ip_address=192.168.1.100/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.1 8.8.8.8

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Example

This example sets a static IP for the wired interface eth0 to 192.168.1.100 with a subnet mask of 255.255.255.0, gateway 192.168.1.1, and DNS servers 192.168.1.1 and Google's 8.8.8.8.

After editing, restart the service or reboot to apply.

bash

# Open the dhcpcd.conf file with sudo privileges
sudo nano /etc/dhcpcd.conf

# Add these lines at the end of the file
interface eth0
static ip_address=192.168.1.100/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.1 8.8.8.8

# Save and exit (Ctrl+X, then Y, then Enter)

# Restart dhcpcd service to apply changes
sudo systemctl restart dhcpcd

# Or reboot the Raspberry Pi
sudo reboot

Output

No output if successful; network will use static IP after restart.

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Common Pitfalls

Wrong interface name: Use ifconfig or ip a to check your interface name (e.g., eth0 or wlan0).
IP conflicts: Choose an IP outside your router's DHCP range to avoid conflicts.
Incorrect subnet mask: Use CIDR notation like /24 for 255.255.255.0.
Forgetting to restart: Changes won't apply until you restart the dhcpcd service or reboot.

bash

## Wrong way (missing interface line)
# static ip_address=192.168.1.100/24
# static routers=192.168.1.1
# static domain_name_servers=192.168.1.1 8.8.8.8

## Right way
interface eth0
static ip_address=192.168.1.100/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.1 8.8.8.8

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Quick Reference

Remember these key points when setting a static IP on Raspberry Pi:

Edit /etc/dhcpcd.conf to configure static IP.
Use correct interface name (eth0 for wired, wlan0 for Wi-Fi).
Set IP address with subnet mask in CIDR format (e.g., 192.168.1.100/24).
Specify router (gateway) and DNS servers.
Restart networking service or reboot to apply changes.

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Key Takeaways

Edit /etc/dhcpcd.conf to set static IP by specifying interface, IP, router, and DNS.

Use the correct network interface name to avoid configuration errors.

Choose an IP outside your router's DHCP range to prevent address conflicts.

Restart the dhcpcd service or reboot the Raspberry Pi to apply changes.

Verify settings with commands like ip a after reboot to confirm static IP is active.