In OpenBSD, you can set or change the default gateway by modifying the /etc/mygate file. The /etc/mygate file specifies the IP address of the default gateway that is used by the system.
To set or change the default gateway in OpenBSD, follow these steps:
Open the /etc/mygate file: Open the /etc/mygate file in a text editor.
Specify the default gateway: In the /etc/mygate file, specify the IP address of the default gateway. For example, if the default gateway is 192.168.1.1, you would enter the following line in the /etc/mygate file:
192.168.1.1
Save the file: Save the changes to the /etc/mygate file.
Restart the network service: To apply the changes, you will need to restart the network service. You can do this by running the following command:
/etc/rc.d/netif restart
This will restart the network service and apply the changes to the default gateway.
Keep in mind that these are just general steps, and your specific configuration may vary depending on your system's setup. Consult the OpenBSD documentation for more detailed information.