VPN-Virtual Private Network is designed to meet the security, reliability, and cost requirements of enterprises and specific users for information exchange, transmission, and exchange in the continuous development of Internet technologies and applications, on the basis of the public internet, the virtual private network solution is built through the channels and encryption technology.
An important core task in VPN construction is tunnel technology, while IPSec-Internet Security Protocol (that is, tunnel Protocol) is a more mature tunnel protocol in VPN technology. Compared with the PPTP and SSL protocols, although IPSec is recognized as the most trustworthy and secure VPN protocol, it is also well known for its difficulty in setup and complicated installation, configuration, and management, especially for network administrators or integrators in different regions of branches, building a VPN network may need to go all over China and set up or modify it at the sites of different enterprises. This disadvantage brings great inconvenience to the construction and application of enterprise PVN.
Qno's QVM (QoS VPN Management) products are specially developed to solve this problem. It uses the IPSec communication protocol, but based on it, it greatly simplifies the configuration process through the SmartLink setting method.
Traditional IPSec VPN settings
To understand how to set the SmartLink, You need to first understand the traditional IPSec VPN gateway settings of the QVM1000 server.
In addition, the traditional IPSec VPN settings of the QVM330 client gateway also involve many parameters.
This is the setting of the traditional IPSec VPN server and client. You can see from the parameters listed in the chart that the steps required for setting are complex, the meaning of each parameter is not described in this article. For more information, see the parameter description list attached to this article.
Easy QVM SmartLink IPSec VPN settings
Compared with the settings of the traditional IPSec VPN server and client, the VPN configuration process of QVM product SmartLink is much simpler. users with a little network knowledge can understand it. Most importantly, SmartLink uses the standard IPSec protocol to set the underlying layer, but the entire program is automatically completed by QVM products for users. In this way, the VPN configuration of SmartLink will not affect the security of the IPSec protocol, but also greatly simplify the work of network administrators to deploy the VPN network.
1. First, you must set the server to add the user-side account and the accessible headquarters network segment.
For the SmartLink setting of the QVM server, you only need to enter the username and password of each external VPN endpoint and the Headquarters network segment that is allowed to access-If 192.168.0.1/255.255.255.0 is set, the proxy server is located at 192.168.0.1, this user can access all the IP address servers of This CIDR block. If it is set to 192.168.0.3/255.255.255.255, it means only the devices that can access the IP address 192.168.0.3 In the CIDR Block of the server. The rest of the CIDR Block settings can follow this type of push.
After the server account is set up, you can notify the client to use this account to connect.
2. in addition, you need to configure the SmartLink vpn of the qvm user end: you only need to enter the user name, password, address of the central QVM server or the network domain name. The domain name of the central QVM server supports dynamic DNS, on the same screen, you can configure the domain name or IP address of the server to back up the VPN connection.
After setting, click OK to automatically set all IPSec connections.
3. After the VPN connection is complete, you can view the connection status of different branches on the QVM1000 server status page, including the connection start time and duration, and make detailed configuration.
Display the connection status between the QVM server and different VPN endpoints.
It can be seen that SmartLink VPN is suitable for applications with multiple branches, and its configuration is very simple-the headquarters network administrator first enters the Branch's user name and password in QVM1000. Next, you can directly send the QVM330 used by the branch office to the branch office, and then notify the branch office staff of the IP address, user name, and password by file or email. Branches only need to connect QVM330 to the Internet and enter the corresponding three parameters. The Gateways of both parties will automatically complete all the settings.
In addition, in order to complete the automatic configuration of SmartLink, QVM series products are designed for virtual IP penetration during R & D. Due to insufficient IP addresses allocated by some ISPs, virtual IP addresses are allocated to users. In addition, some offices share and connect to the Internet, so branches often connect to the Headquarters through a layer-2 virtual IP address. QVM SmartLink settings of xiaonuo allow you to easily create a VPN tunnel under complicated IP settings. Network administrators or integrators no longer have to go around to set up VPN for their branches.
Conclusion
With the development of Internet technology, opening up information exchange channels and increasing the speed of information exchange have become one of the tasks that cannot be ignored in enterprises and business activities. The emergence of VPN Technology, this not only greatly reduces the cost of Wan construction and operation and maintenance, but also enhances the reliability and security of the network. More and more users can prove that in the next few years, VPN technology will develop rapidly and become the best solution for Wan construction. At the same time, VPN technology also brings new security and management problems to technicians. The complicated installation, configuration and management of IPSec is one of them. If this problem is not solved, it will bring troubles to the establishment, maintenance and management of VPN, which is not conducive to the work of network administrators, but also to the practical application of VPN networks.
From the comparison in this article, we can see that QVM (QoS VPN Management) Products of xiaonuo technology can solve this problem. QVM1000 and QVM330 can be used in combination, and SmartLink can be used between them, it is easy to establish an IPSec VPN connection to ensure the security of the transmitted data, and effectively simplifies the configuration and management of VPN Network secrets by network administrators, saving time and maintenance costs. In addition, QVM system products of xiaonuo have excellent performance in terms of performance, stability, security, and scalability, and are an extremely cost-effective choice among similar products.