Background demand analysis
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Frequency monitoring system is widely used in monitoring, security, quality inspection and other aspects. With the development and popularization of computer and network technology and the rapid expansion of network bandwidth, video surveillance has developed into a network multimedia monitoring system, which combines digital video surveillance technology with network technology to realize LAN under the condition of unattended on-site monitoring host. Or the function of remote monitoring of the Internet. In this way, the monitoring information is released from the monitoring center, thereby improving the management level and efficiency. However, if the remote access video surveillance service technology is insufficient, the confidentiality and speed required for monitoring information cannot be guaranteed. How to solve this problem? The emergence of VPN (Virtual Private Networking) technology has solved this problem and realized the safe and convenient transmission of remote video surveillance information.
According to the survey, the requirements for implementing the VPN remote video surveillance system are:
Virtual Private Network VPN Secure Transmission: The complete VPN network video surveillance system, the most important requirement is to allow the monitoring video of each branch and local LAN to be transmitted to the management server of the head office monitoring center in a secure and real-time manner. Security protection and alarm release. If the video surveillance information is not encrypted, it will be transmitted directly through the public Internet, which may cause problems such as confidentiality inside the enterprise. Therefore, it is necessary to establish a complete VPN transmission, which not only saves the high cost of the dedicated line, but also obtains a safe and stable transmission quality.
Stable broadband access service: Integrate video surveillance information into the VPN. Although it can ensure a secure and stable connection, the VPN line is still established on the public Internet. Once the access broadband line is unstable, it is easy to drop. It also affects the online quality of the VPN. It is necessary to provide support for backup in real time when the broadband access service is stable or when the operator loses the network.
Bandwidth increase can also save costs: multimedia video surveillance systems include video, audio and related data transmission. To get real-time and smooth transmission quality, considerable bandwidth is required to achieve, so the bandwidth is increased first. level. This leads to an increase in line costs and possible line additions, resulting in cost and management issues. At this time, taking into account the cost considerations, proper line integration and integration has become the demand of enterprises.
Network Security Anti-attack Firewall: More and more attacks and viruses have caused a potential crisis in enterprise network security. Once the broadband access is affected by malicious attacks and the normal operation of the network, the efficiency of monitoring information transmission is greatly reduced. In severe cases, the entire network is disconnected, causing the video surveillance system to shut down. If you purchase more firewalls, it is equal to increase the cost, so the router needs to have appropriate firewall functions for network security protection.
Internal Internet behavior control avoids affecting important transmissions: Most employees download music movies through BT during working hours, or chat with real-time communication tools such as QQ and MSN, which not only affects work efficiency, but also may cause bandwidth to be occupied and affect monitoring information. Reduced transmission speeds affect monitoring real-time responses, and more serious are the threats of viruses, worms, and Trojans that may follow. Effective and reliable regulation of intranet users' use of specific software is necessary.
Convenient configuration and management: In today's era of efficiency, routers also need to provide easy configuration and management of the configuration interface design, so that the network management is freed from the tedious work. In addition, most of the VPN clients are not equipped with professional network management. Many command line routers bring trouble to the settings. If you want to perform any operation on the router, you must find professional personnel, which brings variables to the real-time response. . Therefore, the configuration of the router is preferably an intuitive configuration interface and a simplified configuration design. Even if it is not a specialized network administrator, it can be easily used after simple training, saving unnecessary time and waste.
Qno Qeno VPN remote video surveillance solution
According to the service requirements of the enterprise remote VPN video surveillance system and the above network analysis, the multi-WAN VPN firewall vendor, with its high cost performance advantage, proposes a complete networking solution for the remote VPN video surveillance system. The specific networking architecture topology is as follows:
Figure: Qno Qiaouo remote VPN video surveillance system application topology
As shown in the above figure, the headquarters is the central end, and the outer points of the branches form a star-shaped multi-point interconnection, realizing the centralized control mechanism of the central point of the headquarters. The out-of-branch points are connected to the central end of the headquarters to achieve interconnection between the branches. At the central end of the headquarters, it supports SSL, IPSec, PPTP, SmartLink VPN complete protocol, and QnoKey IPSec client key access, which is convenient for remote branching and mobile users to access remotely through different VPN connections. The out-of-branch client can deploy the QVM series VPN firewall and connect to the headquarters through the IPSec VPN protocol to transmit monitoring video information to the headquarters monitoring center in real time, so that the headquarters can know the operation status of each branch in real time. Mobile users or stand-alone VPN external points, support the QnoKey IPSec client key, SSL standard browser, Microsoft operating system's own VPN client software and other third-party VPN client software to access the headquarters center. The monitoring center master administrator can calculate the corresponding management work through the VPN security access headquarters.
Practical application case
A chain pharmacy has a branch in the province. Each store has an ADSL account, and the branch computer has a VPN client software that can be connected to the headquarters computer room through a local VPN. Now enterprises require remote video surveillance for each branch to achieve unified management of the headquarters central computer room. Through the above solutions, the company can achieve the purpose of safe and stable monitoring of branches.
In addition to the chain medicine industry, the above scheme can also be applied to multi-line industries such as chain shopping POS system monitoring, bank monitoring, real-time monitoring of construction sites, etc., to provide effective and reliable safety monitoring measures to prevent various safety hazards and man-made crimes. Activities to protect people's lives and property.
Program features
Multi-WAN port access aggregation bandwidth: Qno's multi-WAN products support bandwidth aggregation, automatic line backup and other functions. Multi-WAN port access mode allows enterprises to have larger and flexible configuration space. It can support multi-line and multi-ISP access, which not only can aggregate bandwidth to save cost, but also achieve line backup, data offload, load balancing and other effects. When a line is dropped, it will automatically switch to the line connection of another WAN connection port to ensure that the VPN connection does not drop, avoiding invisible loss and damage when the line is dropped.
Powerful firewall effective anti-virus attack: Qno Qiaonuo VPN firewall, with active packet detection, only one-way start of various hacker attacks, worm protection, you can easily complete the configuration, effectively prevent malicious attacks inside and outside the network, to ensure Enterprise network security reduces the damage caused by attacks on the network. It has built-in anti-ARP function, and detects and filters suspicious packets by means of automatic inspection of the packet, as the first line of defense against ARP attacks. It can be combined with IP/MAC bidirectional binding, and IP/MAC binding can be performed on the intranet PC end on the router side to achieve anti-blocking ARP without loophole effect.
QoS Bandwidth Management Optimizes Bandwidth Usage: Video surveillance multimedia transmission needs to have stable bandwidth, while a few BT downloads and other malicious occupied bandwidth cause network cards, which often cause customer complaints. It is reassuring that Chino's second-generation multi-QoS bandwidth management function supports different bandwidth management policies in seven days and seven days a week. According to different network application environments and time periods, the management and control modes are freely selected to achieve the best bandwidth utilization. Purpose. This function includes traditional QoS bandwidth management and intelligent SmartQoS management. It can be managed according to online number, keyword, maximum or minimum bandwidth, etc. It can also start dynamic intelligent management, which imposes special restrictions on special applications or users. This feature does not prohibit specific applications, but only limits them to provide more flexible bandwidth services.
Easy to implement central control: At the same time, managing multiple VPN access connections at the same time is a very difficult problem for most network administrators. In particular, it is necessary to repeatedly check the online status, bandwidth usage, video surveillance and other information of each point. It takes a lot of time. Qno's nova VPN firewall solves the above problems easily. Its central control function allows you to see all VPN connections at once, and you don't have to check the status of the connection one by one. If you need to further assist in setting or troubleshooting problems, the network management can also directly enter the management interface of the point-of-sale to view or manage settings, which is safe and efficient.
Simple and convenient system management: Qno's WAN VPN firewall has a full-mechanical configuration and management interface. All setting parameters and configuration are clear, easy to understand, and easy to complete network settings. It also supports powerful system log function, which can monitor the status of the system and internal and external traffic in real time through log management and search, and then make corresponding configuration to ensure the internal network is correct.
Support multi-VPN protocol flexible point selection: Qno Qiaouo high-end product series, can support PPTP, IPSec VPN, SmartLink VPN, QnoKey IPSec client key and other connection methods, to meet the needs of multiple VPN flexible configuration outside the point To realize real-time, stable and secure interconnection VPN network system at the central end of the headquarters and each point. It can be seen that the characteristics of the multi-channel multi-protocol can fully be used for enterprise expansion and network video distribution, and the external point can be flexibly selected and applied to the central end according to the actual planning and application.
SmartLink VPN quick setting: Qiaonuo SmartLink VPN is fast online, simplifying more than 20 complicated setup steps, and most of the setting parameters are automatically completed by the VPN gateway. Users only need to input the IP address and user name of the central server. The password is set to three parameters, and the ultra-fast VPN connection setting can be completed.
Policy routing solves the problem of VPN cross-network bottlenecks: Due to the long-standing problem of non-interoperability between telecommunications and Netcom interconnections in many countries, when many enterprises establish VPNs, bandwidth will be insufficient across the ISP network, resulting in unstable VPNs or easy dropped calls. The design of the 诺诺多WAN port can be matched with the setting of policy routing, so that different ISP external points can be directly connected to the corresponding VPN server portal to realize “telecom telecom, Netcom go Netcomâ€, thus effectively solving the problem of cross-network limitation.
Specifying Routes to Strengthen Network Stability: On the other hand, the design of multi-WAN ports also provides a fast and stable way to access the network. Supports the specified routing function, which can bind specific services or applications to specified ports through protocol binding, such as WEB to WAN1, MAIL to WAN2, etc., to speed up access and further ensure network stability. You can also bind a VPN to a specific port to ensure stable and smooth VPN tunnels.
to sum up
Through the above introduction, it can be seen that Qno's nova VPN firewall product features reflect the simple, safe and fast "3S" R&D concept and close to the user's needs, helping the company to reduce costs. , time and effort to achieve efficient, fast and safe operational performance. Especially for remote VPN video surveillance services, there are high requirements in terms of bandwidth and security stability. Qno Qiaonuo VPN remote video surveillance solution can effectively keep the tunnel between the enterprise headquarters and branches, and then Ensure the stability and reliability of its services, improve the video quality of security monitoring, and when the abnormal event occurs, it can be processed in the first time. It is the most cost-effective and most convenient solution.
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