Ports & interfaces
I/O ports	- LAN ports: Four (4) 10/100/1000 Mbps auto-sensing, AutoUplink RJ-45 ports - WAN port: Two (2) 10/100Mbps Ethernet RJ-45 ports with auto fail-over and load balancing

Protocols
Data link protocols	Ethernet/Fast Ethernet/Gigabit Ethernet

Security
Firewall security	Stateful packet inspection (SPI) firewall
VPN support	Twenty-five (25) dedicated VPN tunnels, Manual key and Internet Key Exchange Security Association (IKE SA) assignment with pre-shared key and RSA/DSA signatures, key life and IKE lifetime time settings, perfect forward secrecy (Diffie-Hellman groups 1 and 2 and Oakley support), operating modes (Main, Aggressive, Quick), fully qualified domain name (FQDN) support for dynamic IP address VPN connections.

Features
Flash memory	4 MB
Internal memory	16 MB
Hardware prerequisites	- Cable, DSL or wireless broadband modem and Internet service - Ethernet connectivity from broadband modem - Network card for each connected PC - Network software (e.g. Windows) - Internet Explorer 5.0 or higher or Netscape Navigator 4.7 or higher

Operational conditions
Operating temperature (T-T)	0 - 40 °C

Weight & dimensions
Weight	620 g

Other features
Power requirements	12V DC, 1.2A
Maximum data transfer rate	1 Gbit/s
Dimensions (WxDxH)	189.2 x 123.1 x 31.9 mm
Network interface	IP routing, TCP/IP, UDP, ICMP, PPPoE