Netgear 108 Mbps Super Wireless ADSL Modem Firewall Router. Modulation: OFDM BPSK. DSL connection type: ADSL, DSL specification: Annex A. Routing protocols: DNS, PPPoA, PPPoE, RIP, UDP. Firewall security: Stateful Packet Inspection, Intrusion logging and Reporting, Denial of Service protection, Security algorithms supported: WEP, WPA-PSK, VPN support: NAT traversal (VPN pass-through) for IPSec, PPTP, L2TP VPNs. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 0 - 90 %