Hi, I'm Shane Killen. This is an IT technical blog about configs and topics related to the Network Engineer working with Cisco, Brocade, Check Point, Palo Alto, etc. I hope this blog serves you well. -- May The Lord bless you and keep you. May He shine His face upon you, and bring you peace.
All firewalls I know have dual-ISP backup configuration availability. SonicWall is no different. If you have dual-ISPs, then certainly set it up. Its on the Failover and LB (Load Balancing) page. Its easy and works well.