The SMC8014WN-RES Wireless Cable Modem Gateway is a cable modem with an integrated 4-port router, and 802.11n wireless access point combined into one device to simplify cable connectivity for all type of users. The Gateway is DOCSIS 2.0 compliant to ensure interoperability with existing cable systems. It supports VPN pass through connections with PPTP, L2TP, and IPSec. The SMC8014WN-RES has an integrated firewall, including Stateful Packet Inspection (SPI) to provide a high level of security against hacker invasions, such as Denial of Service (DoS) attacks. The SPI firewall analyzes individual data packets as they pass through the gateway, to ensure only authorized data is allowed access to your network.