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TP-Link TL-ER5120

details: Gigabit Load Balance Broadband Router
hardware type: Multi-WAN Router
date added: 2011-10-06
updated: 2013-04-24
The TL-ER5120 features one fixed Gigabit WAN port, one Gigabit LAN/DMZ port and three free changeable ports that can be set to either LAN or WAN, allowing the router to support up to four WAN ports to satisfy various Internet access requirements through one device.

The Intelligent Load Balancing function can distribute data streams according to the bandwidth proportion of every WAN port to raise the utilization rate of multi-line broadband. With IP-based Bandwidth Control and Session Limit functions, network administrators can flexibly manage network bandwidth to optimize bandwidth usage.

For defense against external threats, TL-ER5120 features an automatic protection to detect and block Denial of service (DoS) attacks such as TCP/UDP/ICMP Flooding, TCP Scanning, Ping of Death and other related threats.
 TL-ER5120 Features
 Availability: currently available
 LAN / WAN Connectivity
 WAN ports: 1
3 changeable LAN/WAN ports
 WAN port(s) type: Gigabit Ethernet (RJ-45)
 WAN port auto cross-over: yes
 LAN ports: 1
 LAN ports type: Gigabit Ethernet (RJ-45)
 LAN ports auto cross-over: yes
 Auto-failover connection: yes
 Load Balancing: yes
 NAT routing: yes
 Multihomed: yes
 DMZ: yes
 Port forwarding: yes
 Port triggering: yes
 DHCP server: yes
 DHCP client: yes
 Dynamic DNS client: yes
 UPnP: yes
 Routing Protocols: RIP v1 (static routing, RFC 1058)
RIP v2 (dynamic routing, RFC1389)
VLAN tagging (802.1q)
 IPSec passthrough: yes
 L2TP passthrough: yes
 PPTP passthrough: yes
 DoS / DDoS protection: yes
 Filtering: Domain/URL blocking, IP Address filtering, MAC Address filtering, keyword/content filtering, Java, ActiveX, Cookie
 Device Management
 Default IP address:
 Default admin username: admin
 Default admin password: admin
 Administration: Web-based (LAN)
Remote configuration (WAN)
Telnet / CLI
 Firmware upgradeable: yes
 Event log: yes
 Usage Statistics: yes
 Diagnostic functions: yes
ping, traceroute
 Misc hardware info
 RAM: 128 Mb
 Flash Memory: 8 Mb
 NTP client: yes
 Notes: The router features 1 Console Port (RJ-45 On RS232)
 Product page:

Please use the Add Comment function below to review devices you have used (please be descriptive). If you find an error in our database, or have additional information about the product, please
  User Reviews/Comments:
by anonymous - 2018-01-29 10:45
1. The company does not know how to explain or write help page.
2. Nothing is simple, nothing is clear.
3. My TL480+ works much much better than this
4. Its ports never goes to gigabit. If you see port config and flow control, maximum speed is 100MB fullduplex
5. It is making my net sloww. CPU usage is very high and reaches 100% with three clients connected.
6. There is no response for any query from the company, where as D-Link even calls when a problem is logged.
7. Port forwarding needs expert to config.
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