Gigabit Load Balance Broadband Router
TL
-ER5120
1 fixed gigabit WAN port, 1 fixed gigabit LAN/DMZ port and 3 freely interchangeable gigabit WAN/LAN ports
Abundant security features including ARP Inspection, DoS Defense, URL/Keyword Domain Filter and Access Control
Deploys One
-Click restriction of IM/P2P applications to easily manage staff online behavior
Supports PPPoE Server for the better management of internal network
Load Balancing, automatically selects the best route according to the load
Professional 4kV lightning protection keeps your investments as safe as possible
Load Balanced Router TP
-LINK (TL
-ER5120) Gigabit
TL
-ER5120 
Resource CD 
Power Cord 
Rack
-mount Kit 
Installation Guide
TP
-LINK
TL
-ER5120
IEEE
802.3,
802.3u,
802.3ab 
TCP/IP, DHCP, ICMP, NAT, PPPoE, SNTP, HTTP, DNS, IPsec, PPTP, L2TP
1 Fixed 10/100/1000Mbps WAN Port 
3 Free Changeable 10/100/1000Mbps WAN/LAN Ports 
1 Fixed 10/100/1000Mbps LAN/DMZ Port 
1 Console Port (RJ
-45 On RS232)
EIA/TIA
-568 100? STP (Max 100m) 
EIA/TIA
-568 100? STP (Max 100m) 
8MB
DDRII 128MB
PWR, SYS, Link/Act, Speed, WAN, DMZ
120000
DHCP Server/Client 
DHCP Reservation
Modify WAN/LAN/DMZ MAC Address
Port Mirror,Rate Control,Port Config,Port VLAN
Dynamic IP, Static IP, PPPoE, PPTP, L2TP, Dual Access, BigPond
Intelligent Load Balance 
Policy Routing 
Protocol Binding 
Link Backup (Timing, Failover) 
Online Detection
One
-to
-One NAT 
Multi
-nets NAT 
Virtual Server, DMZ Host, Port Triggering, UPnP 
FTP/H.323/SIP/IPsec/PPTP ALG
Static Routing 
Dynamic Routing (RIP v1/v2)
 
TCP/UDP/ICMP Flood Defense 
Block TCP Scan (Stealth FIN/Xmas/Null) 
Block Ping from WAN 
 
MAC Filtering 
URL/Keywords Filtering 
Web Content Filtering (Java, ActiveX, Cookies) 
 
Sending GARP Packets 
ARP Scanning by WAN/LAN 
IP
-MAC Binding
IP
-based Bandwidth Control 
Guarantee & Limited Bandwidth 
Time
-scheduled Policy 
IP
-based Session Limit
Web/CLI/Telnet Management Interface 
Remote Management 
Export & Import Configuration 
NTP Synchronize 
Syslog Support
PPPoE Server 
E
-Bulletin 
Dynamic DNS (Dyndns, No
-IP, Peanuthull, Comexe)
CE, FCC, RoHS
Internal Universal Power Supply 
AC100
-240V~ 50/60Hz Input

17.3x
8.7x
1.7 in.(440x220x44 mm) 
19
-inch Standard Rack
-Mount Width, 1U Height
LT.