Static IP Client

[impulsado]

Static IPv4 for Clients

I have added this code inside newClient() function, between Client name and Password, to let me configure a static IPv4 for the clients.
It has been tested on both Windows and Debian 11 and it works correctly.

Before Code

You must add this option inside "/etc/openvpn/server.conf"

client-config-dir /etc/openvpn/ccd  # Assing static IP to the client.

Code

# STATIC IP
	echo ""
	read -rp "Do you want to assign static IP? (Y/n): " -e -i Y USR_IP_OP

	if [[ ${USR_IP_OP} == "Y" ]]; then
		echo "Static IPv4 must be insde the network subnet"
		echo "(e.g. 10.8.0.0/24)"

		until [[ $CLIENT_IP1 =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; do
			read -rp "Client IPv4: " -e CLIENT_IP1
		done

		echo "ifconfig-push ${CLIENT_IP1} 255.255.255.0" > /etc/openvpn/ccd/${CLIENT}
	fi

Important considerations

• It does not check if the IPv4 has already been assigned.
• It does not check if the IPv4 is inside the network range.
• If you have changed the network mask, you must change "255.255.255.0" to your specific mask.