I current have a Balance 380 for my office and I just ordered a Barracuda X300. I am currently and want to continue to use the 380 for my router and VPNs but I want to add the X300 for the firewall. I have only one WAN connection at this point so would I just install the X300 between my cable modem and the 380? Thanks for the help
There are two deployment mode that you can consider here.
B380 NAT mode (Please refer to the attached diagram)
Please note that the IP showing in the diagram is just a example IP given for you to further understand the design. You have to change the IP settings base on your defined network.