network vpn diagram

divided into the following steps in the process of establishing a VPN: First, the data encapsulation, so that can not communicate with each other LAN through the export of IP address packaging to achieve off-site Lan-lan communication. The security protocol is then used to encrypt the data and convert the plaintext into ciphertext. Next to the data authentication, using encryption algorithm to send the message characteristics of the encryption gen

Absrtact: Broadband IP metropolitan Area network, routing planning and design is the core link. In the beginning of the network, must be integrated planning. According to the construction of the metropolitan area Network, the routing strategy based on Bgp/mpls VPN is adopted, which is proved to be feasible by practice.

Many mobile office people often travel outside, in this case, if you need to frequently access the important content in the local area network, how to do? Perhaps some people will not hesitate to say that through the remote dial-up Access connection can easily achieve the purpose of arbitrary access to the unit LAN; However, traditional remote dial-up access operations, whether in terms of security or economic aspects are not effectively guaranteed, b

Experiment content of Dynamic IPsec VPN in a star network: 1. Create a fully interconnected topology. 2. Take R1 as the center, so that R2 and R3 establish a neighbor relationship with R1 respectively, while the routes between R2 and R3 are not reachable. 3. Create a Dynamic IPsec VPN R1 # show run !! Crypto isakmp policy 100 hash md5 authentication pre-share gro

this setting, the client machine can access the Internet (I can perform this operation on the virtual machine ). But I still cannot access the network after performing this operation on the lab server, so we need to create a NAT. Here we use powerful iptables to create NAT. First, install iptables: sudo apt-get intall iptables www.2cto.com and add a rule to the nat table: sudo iptables-t nat-a postrouting-s 10.100.0.0/24-o eth0-j MASQUERADE, the clie

The experimental topology diagram. Extranet access to corporate intranet files via VPN VPN in the virtual private network clients use a specific tunnel protocol, with the virtual private network server to establish a connection, virtual private

Article Title: Ubuntu8.10 configuring the VPN network and solving problems encountered. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. The advantage of configuring a VPN network is

/etc/init. d/pptpd restart: Find a Windows computer, create a VPN link, enter the Server IP address (or domain name), and enter the user name and password as set, the field is empty (if you set it in pptpd-options, it will be consistent here), just click the link. Under normal circumstances, you should be able to establish a VPN connection with the server.After the connection is established, you will find t

Supporting Demo Video: http://edu.51cto.com/course/course_id-485-page-2.html In many cases, applications with asymmetric encryption are not limited to servers, but also need to be used on network devices, such as SSH, the certificate is the most typical application of asymmetric encryption. It is particularly famous for its IPsec-based VPN applications, such: certificates can be used when configuring

Today, many SaaS and PAAs (Platform as a Service) vendors and developer fanatics have adopted cloud computing. In addition, some companies have expressed great interest in their virtualization projects, but have not yet formed a wave of implementation. It's not surprising, actually. Last year, cloud computing was not even in the top 10 list of Gartner's technology. Cohesiveft's CTO, Patrick Kerpan, says: Security is a barrier to the implementation of enterprise cloud computing. Despite the fac

The English full name of the VPN is "virtual private network", translation comes from "The fictitious specialized network". As the name suggests, virtual private network we can understand it as a virtual out of the enterprise internal line. It can establish a proprietary communication line between two or more corporate

1. First configure the wired connection in the VPN configuration. 2. perform the following operations:Sudo gedit/etc/Network/interfaces Auto LoIface lo Inet loopbackAuto eth0Iface eth0 Inet staticAddress xxxxNetmask xxxxGateway xxxx Sudo gedit/etc/resolv. confNameserver 10.10.0.21 ThenSudo/etc/init. d/networking restart Last Sudo VPN-Connect 3. Install the

Redistributing RIP, OSPF, and VPN in the NetworkTutorial steps: the frame relay link of R1/R2/R5 participates in the s2/1 link of ospf area 0R5/R6, participates in the l0 interface of ospf 100R2, participates in the frame relay link of area 20R2/R4, and participates in area 4R1/R3. frame relay link running rip v2, redundant interfaces are not allowed to send rip routes in R1 to implement two-way rip and ospf, and then to implement two-way ospf In R5.