VPN (VirtualPrivateNetwork) is a virtual network established on the basis of the existing network, mainly used to help two networks communicate through the VPN tunnel. the advantage of VPN is that after the computer A1 in Network A is connected to the computer in Network B through A tunnel, A1 will be able to use the network environment of network B.
In March 1999, the Internet Task Force (IETF) published a RFC2547 by Cisco, describing a way for operators to provide virtual private network (VPN) services to users through an IP backbone network. This method uses an extended BGP (Boundary routing protocol) to distribute VPN routing information through the carrier backbone network, and uses Multiprotocol token switching (MPLS) to forward
Requirements for VPNBecause the VPN is for the Enterprise User Service, relates to the enterprise normal operation, therefore the following from the user angle analysis to the VPN several requirements.VPN availability: That is, the established network can meet the requirements of the user's business. After the enterprise user's own business nature, the flow analysis, constructs one to adopt what technology
As we all know, because VPN (Virtual Private Network) transmits private information, VPN users are concerned about data security. Currently, VPN uses four technologies to ensure security. These four technologies are Tunneling, Encryption and Decryption, and Key Management) user and device Authentication technology (Authentication ).
1. Tunneling Technology:
The t
As a new VPN technology, ssl vpn gateway has its own unique characteristics and has its own merits. Ssl vpn is suitable for mobile users' remote access (Client-Site), while IPSec VPN has inherent advantages in Site-Site VPN connections. These two products will coexist in the
1. About VPN
(1) Virtual Private Network (VPN) is an extension of a private network. It contains Internet-like shared or public network connections. Through VPN, data can be sent between two computers through a shared or public network through a simulated point-to-point dedicated link.
(2) If it is more common, VPN is
To sum up, a VPN is a private connection that is established between two machines or two networks by sharing a public network. In fact, VPN technology enables organizations to safely extend network services over the Internet to remote users, branch offices, and cooperative companies. In other words, the VPN turned the internet into a dedicated WAN for impersonati
Network knowledge Review-VPN Virtual Private Network (VPN) refers to the technology for establishing a private Network on a public Network. It is called virtual network, mainly because the connection between any two nodes of the VPN network does not have the end-to-end physical link required by the traditional private network, but is built on the network platform
ADSL is called asymmetric Digital subscriber line. ADSL is called asymmetric because its two duplex channels are used to transmit data to the user, only a small portion of the bandwidth used to send back to the user's information. ADSL on a pair of copper wire support upload rate 640kbps~1mbps, 1mbps~8mbps rate, effective transmission distance within the 3km~5km range.
The application of ADSL
ADSL LAN users with 4 fixed static IP address, the application of ADSL LAN form network units can be s
With the development of China's routing industry, it also promotes the constant update and upgrade of routing technology. Here we mainly introduce the performance and characteristics of Cisco VPN Router, with the development of the Internet, online Communication and transactions have become an important way for people to work. At the same time, network security also mentions the agenda of various enterprises.
In the face of the severe challenges of da
An example of Cisco Easy VPN comprehensive configuration is shown in this example. The topology is 15-15. In this example, the Cisco 831 router is used as the remote device of Easy VPN and the Cisco 1751 router is used as the device of Easy VPN Server. In this example, the WAN interface IP addresses of the Cisco 1751 router and the Cisco 831 router are both stati
With the rise of the wireless network age, vrouters must keep pace with the times and adapt to the application of new technologies. What features can a multi-WAN router make better use? The multi-Wan VPN Broadband Access Router is generated when the application needs it. In fact, the multi-Wan Broadband Access Router originated from advanced countries in Europe and America. Its main application is to help enterprises use bandwidth elastically, especia
Rd (route-distinguisher) is used to identify different VPN instances on the PE device. Its main function is to achieve address multiplexing between VPN instances. It and the IP address constitute a 12byte vpnv4 address space, rd and the route are carried together in the bgp update message and published to the peer end. On the one hand, we need to verify whether the RD function is implemented, whether the PE
Take a look at Vpn,vpn (virtual private network, VPN) is a secure, point-to-point connection through a private network or a public network. The VPN client uses a specific tunneling protocol to establish a virtual connection with the VPN server.
The best example of a
Frequent business trip friends, for VPN network should be not unfamiliar, because access to VPN network, no matter where you can through the Internet at any time, to remote access to the internal network of enterprises, access to internal data. And with China's "broadband China" strategy of in-depth promotion, optical fiber home gradually landing, the family network applications began to become more and mor
Tags: TCP remote maintenance efault strong end-to-end DDR FAs SWA stability PPTP VPN server VPN OverviewVPN(full name virtual PrivateNetwork)(1) relying on the ISP and other NSP, in the public network to establish a dedicated data communication network technology, can provide security between enterprises or between the individual and the Enterprise data Transfer Tunnel service(2) The connection between any
You can build a virtual private network in countless ways. The minimal VPN implementation scheme consists of the Internet-connected ras pptp server, the Internet-connected client, and the PPTP connection between the above server and the client. As long as the ISP service or Internet connection is available, the client can establish a connection with your server from any corner of the world. However, most VPNs are not only composed of interconnected se
VPN
Virtual Private Network (VPN) refers to the technology for establishing a private network on a public network. It is called virtual network, mainly because the connection between any two nodes of the VPN network does not have the end-to-end physical link required by the traditional private network, but is built on the network platform provided by the public n
A lot of friends because of working relationship often mobile office, so the transmission of information, and the company information in a timely manner or tired to open a company or home computer to see movies and so on application appears very headache. This application means secure network communication over the Internet, sharing resources. and want to achieve this kind of demand, actually already had the best way to--vpn.
A
Currently, VPN security technology is widely used. Here we mainly analyze the comprehensive application of VPN security technology on sites and clients. It is difficult to achieve network security, and the cost for achieving network security is very high. Due to the rapid development of commercial applications and business practices in the enterprise network infrastructure, every enterprise tries to underst
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