L2TP tunnels fail to be established between the AR and the PC running Windows 8

8

The possible cause is that the PC uses Windows 8. You must add \ before the user name when inputting a user name. The correct input mode is \vpn. Otherwise, a domain name is automatically added before the user name. As a result, login authentication fails.
When inputting a user name on PCI, add \ before the user name, for example, \vpn. Then PC1 dialup succeeds.

Other related questions:
Possible cause for a failure to establish the L2TP over IPSec tunnel between the AR and PC running Windows 7 or Windows XP
The system registry may be not modified. Use Windows 7 as an example. Modify the Windows registry and do not use the digital certificate. The method is as follows: 1. Choose Start > Run and enter regedit to open the registry. 2. Access HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RasMan\Parameters , and right-click the blank area on the right and choose New > DWORD (32-bit) to generate a new file named New Value #1. 3. Select New Value #1, right-click Rename to rename the file name ProhibitIpSec. 4. Select the ProhibitIpSec file, and right-click file and select Modify. 5. Set Numerical Data to 1 and set Cadinality to 16 hexadecimal in the displayed Edit DWORD�?2-bit�?value dialog box. 6. Restart the PC to make the configuration take effect.

Problem and solution when the IPSec tunnel cannot be established between the USG6300 and Windows 8 system
The IPSec tunnel established using the Windows 8 dial-up software on the USG6000 is interrupted at a certain interval. You can use other VPN tunnels, such as L2TP.

Method used to establish an IPSec tunnel between the AR and PC
An IPSec tunnel is established between the AR and PC. This example applies to all AR models of V200R002C00 and later versions. For details about the configuration, see "Example for Configuring an IPSec Tunnel for Remote Dial-Up Users to Connect to the Headquarters" of "Using VPN to Implement WAN Interconnection" in Typical Configuration Examples.

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