NETGEAR Pro SAFE business-class VPN Firewalls are high performing routers that deliver Stateful Packet Inspection (SPI), Virtual Private Network (VPN), Network Address Translation (NAT), AES & 3DES Encryption, Denial of Service (Dos) protection & provide full secure network access between headquarter locations, remote/branch offices & remote workers. This makes it the ideal solution to provide businesses with the essential network security needed to stop unwanted intrusions.