SonicWall touts “reassembly free inspection,” which essentially does only part of the job. Without reassembling packets, common fragmented attacks pass right through their security undetected. Despite the gap in security this creates, it indeed reduces the processing needs of their boxes. However, even with this “advantage,” the NSA products still can’t match WatchGuard XTM, which doesn’t sacrifice security for performance. View more details on how WatchGuard firewalls can strongly compete against SonicWall firewall appliances.