Fiber7 customers automatically receive an IPv4 address via DHCP (Dynamic Host Configuration Protocol - more specific details can be found on Wikipedia). The addresses are managed and assigned centrally via redundant DHCP servers.
Please note that the DHCP server assigns IP addresses based on the physical port of our switch. If you change your router/firewall, you will be assigned with the same IP address. However, if you connect multiple devices at the same time (i.e. if you use a switch between the Fiber7 fiber and your network), all the devices will be assigned with the same IP address resulting in a malfunctioning connection. Make sure you connect only one device to the fiber.
Please note: this also applies to customers with a fixed IPv4 address!