Gigabit Load Balance Broadband Router

64-bit dedicated dual-core processor and 2 Gbit DDRIII high-speed memory for outstanding performance
Equipped with 1 Gigabit WAN port, 1 Gigabit LAN port, and 3 adaptable Gigabit WAN/LAN ports
Load Balancing automatically selects the best route to the destination according to the load
The captive portal provides convenient guest authentication while promoting your business
Abundant security features including ARP Inspection, DoS Defense, URL/Keyword Domain Filter and Access Control
Professional 4KV lightning protection keeps your investment safe¹

Overview

What This Product Does

The TL-ER5120 Gigabit Load Balance Broadband Router from TP-Link possesses exceptional data processing capabilities and a rich array of features including Load Balance, Access Control, DoS Defense, Bandwidth Control, and Session Limit. Suitable for small and medium-sized enterprises. Equipped with a 64-bit dedicated dual-core network processor, the router can deliver high-speed connections to a large volume of client devices as part of a secure and easy-to-manage network.

Abundant Security Features

For defense against external threats, TL-ER5120 features 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. For better management of the internal network, TL-ER5120 allows administrators to set rules to block specific websites and limit staff access to specific services such as FTP, HTTP, and SMTP.

Captive Portal and Guest Management

Captive Portal authentication facilitates the network resource control. When configured, user access can be captured, authenticated, and classified. Appropriate network resources can be allocated for particular users or the guests.

Optimizing Bandwidth Usage

The TL-ER5120 features three freely interchangeable 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.

Safety-Minded Enterprise Investments

Professional lightning protection technology¹ is designed to prevent electrical surges from penetrating the interior of the device, to be discharged harmlessly into the Earth. In this way, the TL-ER5120 is designed to prevent lightning damage of up to 4KV in the well-grounded connection conditions. This feature ensures that networking infrastructure investments remain as safe as possible from one of Mother Nature’s more violent elements.

Specifications

SECURITY
Access Control	Source/Destination IP Based Access Control
Filtering	MAC Filtering URL/Keywords Filtering
ARP Inspection	Sending GARP Packets ARP Scanning by WAN/LAN IP-MAC Binding
Attack Defense	TCP/UDP/ICMP Flood Defense Block TCP Scan (Stealth FIN/Xmas/Null) Block Ping from WAN

HARDWARE FEATURES
Standards and Protocols	IEEE 802.3, IEEE802.3u, IEEE802.3ab TCP/IP, DHCP, ICMP, NAT, PPPoE, SNTP, HTTP, DNS, 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)
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, WAN
Dimensions ( W x D x H )	17.3 x 8.7 x 1.7 in.(440x220x44 mm) 19-inch Standard Rack-Mount Width, 1U Height

PERFORMANCE
Concurrent Session	150K
NAT Throughput	800Mbps
NAT(iMIX)	703Mbps
NAT(DHCP)	934Mbps
NAT(PPPoE)	868Mbps

BASIC FUNCTIONS
WAN Connection Type	Static/Dynamic IP PPPoE/Russian PPPoE PPTP/Russian PPTP L2TP/Russian L2TP Bigpond Cable
MAC Clone	Modify WAN MAC Address
DHCP	DHCP Server/Client DHCP Address Reservation
IPv6	IPv6 Support
VLAN	802.1Q VLAN, Port VLAN
IPTV	Bridge, Custom

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

AUTHENTICATION
Web Authentication	Local User Authentication Radius Sever Authentication Onekey Online

Management Features
Service	Dynamic DNS (Dyndns, No-IP)
Maintenance	Web Management Interface Remote Management Export & Import Configuration SNMP Diagnostics(Ping & Traceroute) NTP Synchronize Syslog Support

OTHERS
Certification	FCC, RoHS
Package Content	TL-ER5120 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

For additional version information, please go to the support page.

Support

¹ Internet plans greater than 100 Mbps will be limited by the product’s Ethernet WAN port.

² Protection against lightning and electro-static discharge may be achieved through proper product setup, grounding, and cable shielding. Refer to the instruction manual and consult an IT professional to assist with setting up this product.