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The Network Application WAN, VPN Access for Huawei Router

The Network Application for Huawei Router: work for AR150, AR160, AR200, AR1200, Huawei AR2200,Huawei AR3200.
 
WAN Access
 
Depending on the network environment provided by carriers, users can access the network by using FE/GE interfaces, synchronous/asynchronous serial interface, Async interface, CE1/CT1 PRI interfaces, E1T1-F interfaces, 3G/LTE cellular interfaces, Integrated Services Digital Digital (ISDN) BRI interfaces, PoS interfaces, CPoS interfaces, ADSL interfaces, VDSL interfaces, G.SHDSL interfaces, E1-IMA interfaces, or xPON interfaces. The AR provides dual uplinks to implement interface backup and ensure service reliability.
 
As shown in Figure , enterprise A accesses the Internet using ADSL; enterprise B accesses the Internet using FE and E1/CE1 dual-uplink (E1/CE1 link functions as the backup link of the FE link); enterprise C accesses the Internet using G.SHDSL; enterprise D accesses the Internet using 3G..
 

 
VPN Access
 
The headquarters and branches use the ARs to connect to the Internet, establish a VPN, and use VPN tunnels to secure data.
 
As shown in Figure 1, the headquarters is connected to the Internet through the AR2200&3200. LANs of branches connect to the Internet through the AR150&200&1200&2200. The headquarters and branches use GRE/MPLS/IPSec VPN tunnels, and the headquarters and traveling employees use L2TP/SSL/IPSec VPN tunnels to secure data. After branches and headquarters establish VPN tunnels, branches can communicate with each other through the headquarters. You can also deploy DSVPN to dynamically establish tunnels between branches. This method improves forwarding performance and efficiency, and reduces resource usage of the headquarters.
 




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