Yes, it is possible to combine static IP addresses with dynamic IP addresses on the same network. This practice is quite common in network environments where different devices and services have different connectivity and management requirements.

We explain how it can be done and in what situations it is useful:

How do you combine static IP with dynamic IP?

1. Static IP Address Assignment:
   • Critical devices: Static IP addresses are typically assigned to servers, network printers, gateways, switches, and other critical devices that need to have a constant address that does not change over time. This makes it easy for these devices to be easily located and accessible within the network.
   • Manual setup: Assigning a static IP address is done manually by configuring the IP address, subnet mask, gateway, and DNS servers directly in the device's network settings.
2. Dynamic IP Address Assignment:
   • User devices: Devices such as laptops, smartphones, and tablets generally receive dynamic IP addresses that are assigned by a DHCP (Dynamic Host Configuration Protocol) server. DHCP facilitates network management by assigning IP addresses from a defined pool automatically to devices when they connect to the network.
   • Automatic renewal: Dynamic IP addresses can change each time the device reconnects to the network or when the DHCP lease expires.

Usage situations

• Offices and companies: In an office environment, it is common for servers and printing equipment to have static IPs to ensure that users can always find these resources without problems. Meanwhile, employee laptops and phones could use dynamic IPs to facilitate mobility and network management.
• Homes with smart devices: In a home, devices such as security cameras or home automation systems might have static IP addresses assigned to them to ensure that control applications can access them consistently. Mobile devices and personal computers generally use dynamic IP to simplify connection and configuration.

Advantages of combining both

• Flexible and suitable: The combination allows the network to be both flexible and scalable, adapting to a wide variety of device and user needs.
• Administration efficiency: Using DHCP to assign dynamic addresses reduces administrative burden, while static IPs ensure the stability and accessibility of critical services.

In summary, the coexistence of static and dynamic IPs is a common network strategy that takes advantage of the advantages of both types of assignment to create robust and efficient networks.