D-Link DFL-1660, 1.2 Gbit/s, 0.35 Gbit/s, 400000 h, DES/ 3DES/ AES/ Twofish/ Blowfish/ CAST-128;, PPTP/L2TP Server; Hub & Spoke; IPSec NAT Traversal;, SNMP v1, v2c D-Link DFL-1660. Firewall throughput: 1.2 Gbit/s, VPN throughput: 0.35 Gbit/s. Mean time between failures (MTBF): 400000 h. Firewall security: DES/ 3DES/ AES/ Twofish/ Blowfish/ CAST-128;, VPN support: PPTP/L2TP Server; Hub & Spoke; IPSec NAT Traversal;. Management protocols: SNMP v1, v2c, Routing protocols: OSPF. Connectivity technology: Wired