About PPTP
Point-to-Point Tunneling Protocol (English: point to Point Tunneling Protocol, abbreviated to PPTP) is one way to implement a virtual private network (VPN). PPTP uses Transmission Control Protocol (TCP) to create controlling channels to send control commands and to encapsulate Point-to-Point Protocol (PPP) packets to send data using the generic Routing Encapsulation (GRE) channel. This agreement was first developed by manufacturers such as
1, create VPNRouting and Remote Access--configure and enable and route remote access--Custom configuration--Select VPN access, NAT, and Basic Firewall.
2,VPN ConfigurationIP Routing (nat/Basic Firewall)--New interface (select Local network card)--select "public interface to connect to the Internet" and choose "Enable NAT (E) on some interfaces--add servers in the Address pool column ip--add server IP under
, use the following command to download:
wget http://poptop.sourceforge.net/yum/stable/packages/pptpd-1.4.0-1.el6.x86_64.rpmRPM-IVH pptpd-1.4.0-1.el6.x86_64.rpm
3. Configure
Ppp
Configuring PPP requires editing its two profiles, one option (options) file and one user account file. First edit Option file:
Vim/etc/ppp/options.pptpd
Find Ms-dns
Modify:
Ms-dns 8.8.8.8Ms-dns 8.8.4.4
Next, modify another file that stores the user account:
Vim/etc/ppp/chap-secrets
This file is very simple, w
Description
RouterOS Server ip:172.31.101.80
RouterOS version: RouterOS V6.15
Demand:
To configure the PPTP VPN server on the RouterOS server, the PPTP VPN Client dial-in network segment is: 172.31.101.60-
172.31.101.79
Operation Steps:
First, login RouterOS server
Use Winbox to login here RouterOS
Winbox Download: Http://
Detailed explanation of VPN technology (next)
Lu Xiaopo
(Immediately medium)
Data transfer phase
Once this 4-phase negotiation is complete, PPP begins forwarding data between the connecting peers. Each transmitted datagram is encapsulated within the PPP header, which is removed after it arrives at the receiving party. If you choose to use data compression in Phase 1 and you have completed the negotiation in Phase 4, the data will be compressed bet
I. Overview:
Both ends of the headquarters and division are PIX8.0, all for De Chinglu, such as a telecommunications line, a mobile line, requiring telecommunications lines to go their own online internet traffic, mobile line to go VPN traffic, but if the telecommunications line failure, or mobile line failure, can not interrupt the Internet and VPN connection.
Two. Basic ideas:
A. Set two default gatewa
. and Optical Bridge contract, by the Chinese network to light Bridge Company located in Beijing, Shanghai, Guangzhou and other places of office to provide CNC connected service system in the MPLSVPN access services. This is a successful case of China Netcom's domestic VPN access service based on MPLS.Implementation planAccording to the Optical Bridge in Beijing office (International Trade) of the network access status, in the international trade only
First slide the mouse to the top right or bottom right corner of the screen, exhale the Super bar, and choose Set. When you click on the network section, you will typically display the network name you are currently using.
Enter the settings
Click on the network Setup interface, in the first "connection" project, we can see a "Add VPN connection" option, click it into the Setup interface.
New VPN con
Before I introduced to you based on ISA 2006 building Enterprise employees VPN connection platform content, today, and then based on TMG 2010 How to build a VPN platform to introduce you, the general process is the same, but there are some steps on the Windows Server 2008 is different from Windows Server 2003, so today I also have a complete description of the difference between configuring PPTP
You may have heard about VPN. Next, I will introduce you to the knowledge of D-Link router VPN. How can we use D-Link router VPN reasonably to bring us convenience? The following is a detailed introduction.
VPN Virtual Private Network), as its name implies, is an encrypted Private Network channel used to establish a te
1 Introduction
Virtual Private Network (VPN) technology is used on the Internet to establish its own Private Network by means of encryption and authentication, to meet the security and confidentiality needs of enterprises to transmit data over the Internet. VPN, as a mature security technology application on the Internet, has been rapidly popularized in enterprises, scientific research, education, and other
1. VPN related source code in froyo.1.1 Java layer:A. UI source code:Packages/apps/settings/src/COM/Android/settings/VPNB. VPN Server Source Code:Frameworks/base/VPN/Java/Android/NET/VPNFramework/base/packages/vpnservices/src/COM/Android/Server/VPN
1.2 native layer:External/mtpd: used to control PPTP and L2TP modules.E
VPN (VirtualPrivateNetwork) refers to the technology for establishing a private network on a public network. VPN is a remote access technology that uses public links to build private networks. It mainly uses tunnel technology, encryption and decryption technology, key management technology, and user and device identity authentication technology. Method 1: 1) set vpn
The following is a small series for everyone to collect the "VPN is what" all content, if you like the small series of recommendations, please continue to pay attention to learning.
The full name of the VPN is virtual private network, which is the meaning of the fictitious private network. Many people do not know what VPN means, in fact,
New ways of intrusion into the system can be accessed through VPN
VPN has become more and more widely used. Some people use it to bypass the review system, some use it to access websites prohibited by the State, and some use it as the privacy protection layer.
There are usually two reasons for using VPN in our work: Access Vulnerability exploitation toolkit or
Bgp mpls/VPN Network Technology BGP protocol has been well known for a long time. Its powerful routing policy tool capabilities and its storage and routing performance go beyond any internal gateway protocol of the image model, therefore, it exists as a "bridge" between autonomous systems. before that, there was an EGP protocol, and few people knew it, because it was not widely used, and it is not used by the US military now, but there are not many po
A Brief Analysis of Dynamic Multi-Point VPN using IPSec tunnel for secure data transmission over the Internet is the main solution for communication between Headquarters and branches of the company. Its commercial value will not be mentioned here, and it will take a long time to find a document. The IPSec network topology can be a star structure (hub-and-spoke) or a mesh structure (full mesh ). In practical applications, data traffic is mainly distrib
Zhan Bo Juniper) SRX is relatively simple to establish a VPN site, and NAT is also simple to use. What I want to talk about is the joint application between them. Requirements: Local A and local B establish A VPN site connection, A remote place C through the leased line to the local, the remote only to the local A route, and cannot add A route. Remote C is required to access
Pptp vpn Server in CentOS6 Architecture
For more information, see http://www.178-go.com/archives/vpn-on-centos-vps.html. There are also many articles about installation and configuration on the Internet, which are also detailed. It is not difficult to configure according to steps. Because my application scenarios are a little different from those described in these articles, the server for configuring the
Build a Linux-based VPN Network-Linux Enterprise Application-Linux server application information. The following is a detailed description. Building a VPN is almost one of the most advanced Linux applications. Learning this technology is enough to make you proud of the capital. The main purpose of VPN is to establish an encrypted communication mechanism, and then
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