Standards IEEE 802.3 ( 10-Base T) , 802.3u ( 100-Base TX) Protocols NAT, PPPoE, NTP, SMTP, HTTP, TFTP, DHCP, TCP/ IP, PAP, CHAP, RIP1, RIP2, DDNS WAN 1 x 10/ 100Mbps port ( Internet) LAN 3 x 10/ 100Mbps Auto-MDIX ports DMZ 1 x 10/ 100Mbps Auto-MDIX port LED Indicators Unit: power, status LAN ports/ DMZ port: link/ act, 100 Power Adapter 9V DC, 700mA Dimensions ( L x W x H) 141 x 100 x 27 mm ( 5.5x 3.9 x 1.06 inches) Weight 0.36 kg ( 12.8 oz.) Temperature Operating: 0Ú to 40Ú C ( 32Ú to 104Ú F) Storage: -20Ú to 70Ú C ( 14Ú to 158Ú F) Humidity Operating: 0 % ~ 80 % ( non-condensing) Storage: 0% ~ 95% ( non-condensing) Certifications FCC, CE, Router Firewall NAT firewall, email alert and logs, SPI firewall Security URL filter, access control, password protection VPN ( IPSec) MD5-HMAC/ SHA1-HMAC authentication, DES-CBC, 3DES-CBC encryption, Internet key exchange, manual key negotiation VPN Tunnels 10 ( IPsec) , 10 ( PPTP) VPN Pass-Through IPSec, PPTP, L2TP ( 100 Sessions)