I would like to configure two firewalls on two different ISP as a failover setup.
I normally set the firewalls as primary and standby.
The goal would be to detect the outage and failover to the secondary but I do not want the configurations sync because of different network IP settings from the different firewalls.
Active Active would be fine but I only want to use one block of routable IP addresses which is through the primary. BGP is not an option or configuration of the internet routers.
Can someone please provide me some failover options that I can use in this setup?
Is a partial primary / standby configuratiuon an option?
In a shutshell I only want the inside interface to sync