vpn protocols

We have reviewed the routing protocol above. For the routing protocol, we can classify it into two categories: category and category-free. First, let's take a look at the concept of classless routing. Classful routing) Overview The routing selection protocol that does not send subnet mask information with each network address is called the classification selection protocol r12001 and IGRP.) When a classification routing selection protocol is used, all subnetworks must use the same subnet mask. A

Firewalls are often deployed on the edge of our network environment to isolate the network and protect the security of the Intranet and Internet. For example, in the edge network, MIP a public IP address to a VPN device on the Intranet, for the sake of security, EDGE networks need to have selective open ports or Protocols. MIP is as follows: 650) this. width = 650; "border =" 0 "alt =" "src =" http://www.bk

Mpls vpn L3 PE-CE static explanationL3 mpls vpn static CE route configuration: -- 1. IGP is deployed between P and PE devices to ensure that the loopback address is reachable. -- 2. Deploy LDP, IGP, and LDP between P and PE devices for Label Distribution of backbone networks. IGP ensures that the loop ports between PES can be reached, so that LDP can work normally. -- 3, PE equipment between establish MP-BG

VPN, as we all know, is a virtual private network, and I am too lazy to heap up a bunch of technical terms to test your language capabilities. Simply put, it is to use a public network to achieve remote access to the private network, for example, we know that many enterprises use the Intranet, so what if employees are on a business trip or want to access the company's network? VPN can solve this problem wel

Configure point-to-point VPN on CentOS A Traditional VPN (such as OpenVPN and PPTP) is composed of a VPN Server and one or more clients connected to this server. When any two VPN clients communicate with each other, the VPN Server needs to relay the

line speed, not the normal Linux can do, how it is achieved, how to achieve such high-performance forwarding, the key is that it is still a layer-2 device. 4. The transparency of VPN should begin with shame. When I implemented my VPN last year, I told the customer that our product was a two-layer device, so the customer was relieved because it would save a lot of maintenance time, because the L2 device doe

Article title: Linux study notes virtual private network VPN experiment PPTP. 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 full name of VPN is "Virtual Private Network", which is translated as "Virtual Private Network ". As the name suggests, we can regard a virtu

the way to establish VPN connection in XP system VPN (Virtual private network), the Chinese translation is a fictitious private network, use the VPN technology, the user can connect to an internal network remotely through the Internet (for example an enterprise's LAN), after authentication, even if the user is in the other end of the Earth, You can also access t

State routing protocol is based on the Dijkstra algorithm, which is very famous in graph theory, shortest Path First, SPF) algorithm, such as OSPF. In the distance vector routing protocol, routers transmit some or all route tables to their adjacent routers. In the link status routing protocol, the router transmits the link status information to all routers in the same region. Based on the position of the router in the autonomous system AS), the routing Protocol can be divided into the Internal

stored in IGP Routing table; however MPLS VPN Application PE On the router, PE The router needs MP-BGP Learned Ibgp Route, resend to customer CE Corresponding VRF Of IGP . As a result, I think back to this kind of situation that I encountered before and finally went through the query and Experiment verification, Cisco By default, Huawei routers are not allowed Ibgp Routes are directly redistributed OSPF , (Other IGP The routi

When a network fault occurs, how to quickly locate the fault point is a basic indicator for evaluating the capabilities of a network administrator. Today, I will share with you how to quickly locate vpn Router faults and provide some ideas for you to solve network faults. I take the cisco vpn Router as an example here. After all, people are the leader in the vpn

Interesting ipsec vpn connection ConfigurationI. Level 1: PIX-PIXThe customer proposed to look at a vpn model. In view of the demonstration nature, the requirements were not high, nor did the customer propose the requirements for negotiation parameters and network structures, we chose cisco pix, a popular vpn device, for point-to-point communication.For hardware

In the routing protocol, the OSPF protocol is a special protocol. Let's introduce this agreement today. So everyone should be clear. The VPN Protocol is Cisco's private Routing Protocol, which combines the advantages of Distance Vector and link state 2. It is "Enhanced Interior Gateway Routing Protocol ", the VPN Protocol has the following features: 1. Reduce bandwidth usage: no periodic update is made for

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

Ssl vpn Definition The development of ssl vpn is a supplement to the existing SSL applications. It increases the access control and security level and capability of the company. Ssl vpn also helps enterprises that use remote access to the application system to reduce their security. In terms of attributes, dialing ensures relative security, because a specific tel

Sigmavpn is a lightweight VPN solution designed to provide a simple and secure vpn tunnel for UNIX systems. Its official http://code.google.com/p/sigmavpn, This article is based on the operations in the above document. 1. sigmavpn is modular. It is easy to create new interfaces and encryption/encoding schemes. 2. sigmavpn is very small. There are only several hundred lines of pure C code. 3. The sigmavpn i

Detailed explanation of VPN technology (in) Lu Xiaopo Tunneling Technology Basics Tunneling is a way of passing data between networks through the use of the Internet infrastructure. Data (or payload) that is passed through a tunnel can be a data frame of a different protocol (this word is incorrect) or a package. The tunneling protocol encapsulates the data frames or packages of these other protocols t

, there is a direct connection route on RT8.C 172.16.8.0/24 is directly connected, Ethernet3/02. the vrf SC and RT8 of RT5 are configured with OSPF (CE and PE VRF routing protocols ), route 172.16.8.0/24 to the vrf SC of RT5 through OSPF (this route can only be seen in vrf SC and does not exist in the global routing table of RT5)RT5 # show ip route vrf SCO 172.16.8.0/24 [110/110] via 172.16.58.2, 00:08:58, Serial0/13. Publish the OSPF route to MP_BGP

I. VPN concept VPN is a secure and stable tunnel through a chaotic public Network. Through packets and encrypted transmission of network data, a temporary and secure connection is established in a public network (usually the Internet, in this way, private data can be transmitted on the public network to reach the security level of the private network. If the access method is dial-up, it is called VPDN. Gene

Troubleshooting of IGRP/OSPF protocol 01. is it compatible with other routing protocols? Can it be shared with other protocols? Compatible. It is a CISCO proprietary protocol, so it cannot be configured on non-CISCO devices. It can be shared with other protocols through redistribution. 02. What is the Management Distance of the