What Is Multi-Homing?

Multi-homing is a method of configuring one computer, called the host, with more than one network connection and IP address. The multi-homed method provides enhanced and reliable Internet connectivity without compromising efficient performance.

Why Is Multi-Homing Important?

With more and more Internet-connected devices, an organization’s workforce is no longer sequestered to a single location. Instead, an organization may have employees connecting to their internal network and accessing sensitive data from across the globe. Because of this, old access security measures are no longer enough and must be replaced with safeguards that allow employees and other verified users safe and secure access from anywhere, at any time, from any device.

Using a multi-homed approach can:

• Help load balancing and let a network work with less downtime
• Give added safeguards against system failure
• Help maintain the system during disaster and recovery

How Does Multi-Homing Work?

There are several ways to use multi-homing in a network. Each helps ensure that there are backup connection methods in case one fails:

• Classical multi-homing — This method involves connecting a network to multiple providers, which communicate with the network’s routers using a dynamic protocol. This is a more expensive type of multi-homing.
• Host multi-homing — This simple method involves a single host and multiple networks, like a mobile phone being connected to Wi-Fi as well as a 5G network.
• Multiple-address multi-homing — In this method, a network is connected to several providers, and assigned multiple address ranges, one for each provider. It is less expensive than classical multi-homing, though it requires more technology for routing.

How Does F5 Handle Multi-Homing?

F5 offers BIG-IP Link Controller, which seamlessly monitors availability and performance for multiple ISP connections. Traffic is directed over the best link and ISP, ensuring the highest possible quality of service and speed for users.