Foreword With the diversification of work, the office space is no longer limited to the company or home. Sometimes we need to access intranet resources, and the Internet cannot directly access intranet resources. It is common to deploy a VPN server. Today I will introduce an open source VPN software: OpenVPN Steps Preparation You can […]
Tag: vpn
VPN technology (GRE and MGRE) experiment
1. Experimental topology diagram 2. Experimental requirements 1. R5 is an ISP and can only configure IP addresses, and all its addresses are configured as public IP addresses; 2. PPP PAP authentication is used between R1 and R5, and R5 is the main authenticator; PPP CHAP authentication is used between R2 and R5, and R5 […]
Configure the two gateways to be interconnected through IPSec VPN and perform NAT through the headquarters IPSec gateway to access the Internet.
Specifications Applicable to V200R002C00 and higher versions and all types of AR routers. Network requirements As shown in Figure 1, an enterprise is divided into a headquarters and two branches. Branch 1 and Branch 2 are connected to the Internet through RouterB and RouterC respectively. RouterA is a NAT gateway. Headquarters RouterA and branch RouterB […]
Example for Configuring IPSec-Protected DSVPN
Network requirements A large enterprise has a headquarters (Hub) and multiple branches (Spoke1, Spoke2…, only two branches are used in the example), which are distributed in different regions. The subnet environments of the headquarters and branches often change. Branches use dynamic addresses to access the public network. The enterprise’s current network planning uses the OSPF […]
DSVPN is configured using shortcut mode
Requirements: 1. R5 is an ISP and can only configure IP addresses; all its addresses are configured as public IP addresses. 2. PPP pap authentication is used between R1 and R5, and R5 is the main authenticator; PPP chap authentication is used between R2 and R5, and R5 is the main authenticator; HDLC packaging is […]
Detailed process of setting up an OpenVPN server with Pritunl to quickly achieve remote connection to the public network!
Article directory Preface 1. Environment installation 2. Start installation 3.Access test 4.Create a connection 5. LAN test connection 6.Install cpolar 7. Configure a fixed public network access address 8. Remote connection test Foreword Pritunl is a free and open source VPN platform software (but it does not use a standard open source license, and users […]
DSVPN is configured using shortcut mode
Require: 1. R5 is an ISP and can only configure IP addresses; all its addresses are configured as public IP addresses. 2. PPP pap authentication is used between R1 and R5, and R5 is the main authenticator; PPP chap authentication is used between R2 and R5, and R5 is the main authenticator; HDLC packaging is […]
CentOS builds OpenVPN service
CentOS builds OpenVPN service Overview OpenVPN application scenarios OpenVPN Host Preparation OpenVPN server construction and deployment Install and configure certificate software Create certificate Install openvpn and write the server configuration file Start and check ports OpenVPN client configuration (linux side) Configure openvpn test connection OpenVPN client construction and deployment (windows side) Install OpenVPN software Configure […]
Use Pritunl OpenVPN remote connection for secure and efficient remote access
Article directory Preface 1. Environment installation 2. Start installation 3.Access test 4.Create a connection 5. LAN test connection 6.Install cpolar 7. Configure a fixed public network access address 8. Remote connection test Foreword Pritunl is a free and open source VPN platform software (but it does not use a standard open source license, and users […]
IPSec VPN active and backup modes
1. Topology diagram FW1 serves as the master device to establish an IPSec tunnel with FW3, and FW2 serves as the backup device. 2. Underlying configuration R1: Interface IP address, OSPF configuration sysname R1 # interface GigabitEthernet0/0/0 IP address 10.1.1.1 255.255.255.0 # interface GigabitEthernet0/0/1 IP address 10.1.121.1 255.255.255.0 # interface GigabitEthernet0/0/2 IP address 10.1.131.1 255.255.255.0 […]