Static IP

By default, NanoKVM obtains its IP address via DHCP, which means the IP address may change.

If you want to always access NanoKVM using the same IP address, you can set a static IP.

Here are two methods to set a static IP:

Setting Static IP via Router

Most routers have a feature for setting static IPs for devices. If you can easily access the router's management page, it's recommended to use this method.

In the router management interface, you can find the device with the name kvm and set the IP directly.

Setting Static IP in NanoKVM

If accessing the router's backend is not convenient, you can also set the static IP directly in NanoKVM. Here’s how:

Setting Static IP

Create a file /boot/eth.nodhcp in NanoKVM and edit it as follows:

• Each line represents a custom IP in the format addr/netid gw[optional];
• You can preset multiple static IPs on multiple lines.

# Example
192.168.0.101/24 192.168.0.1  # addr/netid gw
192.168.3.116/22              # addr/netid

After editing and saving the file, run the command /etc/init.d/S30eth restart to apply the configuration.

Note: If all preset static IP addresses are detected by ARP as already in use, setting the static IP will fail. In this case, DHCP will be triggered to obtain an IP address. If this also fails, the IP will be forcibly set to 192.168.90.1/24.

This ensures that NanoKVM always has a usable IP address, allowing network access to operate NanoKVM. If NanoKVM does not receive a valid IP address, you will need to manually modify the file on the TF card or reflash the image to use it normally.

Canceling the Static IP

Delete the /boot/eth.nodhcp file to cancel the static IP setting. NanoKVM will then obtain its IP address via DHCP again.