Multi-Homing Broadband Routers
The most direct method for utilizing two high-speed Internet connections on a home network is to install a router specifically designed for this purpose. Multi-homing routers feature two or more WAN interfaces for Internet links. They handle both the fail-over and load balancing aspects of connection sharing automatically.
However, these high-end products are designed for use by businesses rather than homeowners and therefore can be complicated to set up. Due to the inherent overhead involved in managing such connections, these products may not perform as well as hoped. They are also significantly more expensive than mainstream home network routers.