Kingnet's new double WAN enterprise router ESR-5200/4200/2200 are coming into market in Feb, 2007. ESR-5200/4200/2200 meet middle and large enterprise and net-coffee requirement for accessing more than 400/300/200 computers. Double WAN access increase the flow and deal with single thread network interrupted problem. They also access different ISP, one router can work as two and support intelligent balanced loading. ESR-5200/4200/2200 adopt industrial stead design, built-in reliable power mould and 19 inch 1U steel case which install rack mountable. Kingnet make you to be the first experiencing high speed ,steady new network.
1. Double WAN port access internet: double bandwidth visit , access different ISP , support more users visit internet ,keep internet access never be interrupted.
2. Network Address Transfer(NAT): support best internet application function ,many users visit internet at the same time sharing the same IP address, support xDSL, Cable Modem, LAN/special thread access.
3. 4 port 10/100M switch: This product has 4 10/100M high speed network switch port , support port MDI/MDIX auto linear ordering identified function, and connect with other switch ,provide Internet access for hundreds of computer.
4. PPPoE(ADSL)auto disconnect/connect: User set spare time to save online charges by auto disconnecting and connecting the network.
5. DHCP server: All connected to LAN computer get TCP/IP configuration information from router and simplified user??s management and setting.
6. Static state IP address binding: MAC address and IP address binding function let user manage LAN computer and set computer configuration .
7. System log: powerful system journal function watch router history condition and set computer send journal to administer email address .
8. UPnP function: router default open this function, User use all kinds of network hardware and software easily through UPNP.
9. Based on Web-management: This series products adopt WEB interface management, Chinese interface simplicity and easy to operate and attached detailed help . User can upgrade system software through this interface to make system more steady or extend system function.
10. Internet access control: setting different online qualification for different user.
11. Data package filter: port filter, IP address filter, MAC address filter , Key word filter and so on allow user set router and determinate flow in and from package to pass or refuse .
12. Virtual server: Allowed Internet user visit LAN www and FTP server and other particular server.
13. QoS function: support user setting different QoS application by IP address, application and port, easily to use bandwidth of different application
14. Firewall : User can set allow user LAN package from Internet visit or refuse. DDOS avoid and Ping package forbidden function protect user's LAN hole and virus attack.
15. Online time limit: set particular online time to control the time of LAN visit Internet.
16. DMZ computer: support user set one computer open to Internet and realize particular application.
17. Remote control management : This function can support user remote control your networking in your office or your home
18. DDNS: dynamic DNS analytic, help user establish your own website.
19. Remote wake up: allow user awaken LAN computer at long distance.
Support VPN Pass-through: support VPN Pass-through PPTP, support user set VPN server and customer side in LAN. 
