Historically, the consulting company that has recommended and set up the network devices for our company have installed AdTran routers. Then, they would put in place a secondary device for firewall or vpn functionality (in some cases a single device, in others, multiple devices for each function).
I am wondering, why would you not simply use the AdTran as the firewall? For example, let it block everything, and open specific ip's and/or ports.
I can see potentially having a secondary VPN box, though it looks like most of the AdTrans can support that too.
The models range from 3305, 3450, 4430 if that matters.
Just making sure I am not missing something, thanks!