Currently we have a Cisco ISA570 Firewall which does failover load-balancing between two ISP links.
I would like to get a Sonicwall NSA6000 which should be primary and the ISA570 as a failover device. How should I re-design network such that the WAN Links as well as LAN traffic gets loadbalanced properly?
The ISPs provide just one Gateway IP each.
Currently LAN traffic comes over through Cisco 2960s.
The network should be able to switch from the Sonicwall to ISA570 in case of any failure at Sonicwall. The two Firewalls should also be able to load balance between the two ISP links.
Please suggest possible designs to accomplish the same with the extra equipment required.
Thanks,