| HARDWARE FEATURES | 
| Standards and Protocols | IEEE 802.3, IEEE802.3u, IEEE802.3ab | 
| TCP/IP, DHCP, ICMP, NAT, PPPoE, SNTP, HTTP, DNS, IPsec, PPTP, L2TP | 
| Interface | 1 Gigabit WAN port | 
| 3 Gigabit LAN/WAN ports | 
| 1 Gigabit LAN port | 
| Network Media | 10BASE-T: UTP category 3, 4, 5 cable (Max 100m) | 
| EIA/TIA-568 100Ω STP (Max 100m) | 
| 100BASE-TX: UTP category 5, 5e cable (Max 100m) | 
| EIA/TIA-568 100Ω STP (Max 100m) | 
| 1000BASE-T: UTP category 5, 5e, 6 cable (Max 100m) | 
| Fan Quantity | Fanless | 
| Button | Reset Button | 
| Power Supply | Internal Universal Power Supply | 
| AC100-240V~ 50/60Hz Input | 
| Flash | 32MB | 
| DRAM | DDRIII 256MB | 
| LED | PWR, SYS, Link/Act, Speed | 
| Dimensions ( W x D x H ) | 11.6 x 7.1 x 1.7in. (294 x 180 x 44 mm) | 
| 13/19-inch Rack-Mount Width, 1U Height | 
| PERFORMANCE | 
| Concurrent Session | 40K | 
| NAT Throughput | 940Mbps | 
| IPsec VPN Throughput (3DES) | 99Mbps | 
| BASIC FUNCTIONS | 
| WAN Connection Type | Static/Dynamic IP | 
| PPPoE/Russian PPPoE | 
| PPTP/Russian PPTP | 
| L2TP/Russian L2TP | 
| Bigpond Cable | 
| DHCP | DHCP Server/Client | 
| DHCP Address Reservation | 
| MAC Clone | Modify WAN MAC Address | 
| IPTV | Bridge, Custom | 
| IPv6 | IPv6 Support | 
| VLAN | 802.1Q VLAN, Port VLAN | 
| TRANSMISSION | 
| Load Balance | Intelligent Load Balance | 
| Link Backup (Timing, Failover) | 
| Online Detection | 
| NAT | One-to-One NAT | 
| Multi-nets NAT | 
| Virtual Server | 
| Port Triggering | 
| FTP/H.323/SIP/IPsec/PPTP ALG | 
| UPnP | 
| Routing | Static Routing | 
| Policy Routing | 
| Session Limit | IP-based Session Limit | 
| Bandwidth Control | IP-based Bandwidth Control | 
| VPN | 
| IPsec VPN | 64 IPsec VPN Tunnels | 
| LAN-to-LAN, Client-to-LAN | 
| Main, Aggressive Negotiation Mode | 
| DES, 3DES, AES128, AES192, AES256 Encryption Algorithm | 
| MD5, SHA1 Authentication Algorithm | 
| IPsec NAT Traversal (NAT-T) | 
| Dead Peer Detection (DPD) | 
| Perfect Forward Secrecy (PFS) | 
| PPTP VPN | 16 PPTP VPN Tunnels | 
| PPTP VPN Server/Client | 
| PPTP with MPPE Encryption | 
| L2TP VPN | 16 L2TP VPN Tunnels | 
| L2TP VPN Server/Client | 
| L2TP over IPsec | 
| VPN Pass-through | IPsec (ESP), PPTP, L2TP | 
| SECURITY | 
| Attack Defense | TCP/UDP/ICMP Flood Defense | 
| Block TCP Scan (Stealth FIN/Xmas/Null) | 
| Block Ping from WAN | 
| Filtering | MAC Filtering | 
| URL/Keywords Filtering | 
| ARP Inspection | Sending GARP Packets | 
| ARP Scanning by WAN/LAN | 
| IP-MAC Binding | 
| Access Control | Source/Destination IP Based Access Control | 
| AUTHENTICATION | 
| Web Authentication | Local User Authentication, | 
| Radius Sever Authentication, | 
| Onekey Online | 
| MANAGEMENT | 
| Service | Dynamic DNS (DynDNS and No-IP) | 
| Maintenance | Web Management Interface | 
| Remote Management | 
| Export & Import Configuration | 
| SNMP | 
| Diagnostics(Ping & Traceroute) | 
| NTP Synchronize | 
| Syslog Support | 
| OTHERS | 
| Certification | FCC, RoHS | 
| Package Contents | TL-ER6020 | 
| Power Cord | 
| Rack-mount Kit | 
| Installation Guide | 
| Environment | Operating Temperature: 0℃~40℃ (32℉~104℉) | 
| Storage Temperature: -40℃~70℃ (-40℉~158℉) | 
| Operating Humidity: 10%~90% non-condensing | 
| Storage Humidity: 5%~90% non-condensing | 
| Warranty | Limited Lifetime |