PPTP (Point-to-Point Tunneling Protocol) and L2TP (Layer 2 Tunneling Protocol) are two protocols in VPN technology.There are some differences in implementation, security, and so on.This article will introduce the characteristics of these two protocols and the specific steps of building VPN with Lte router in detail.
PPTP is a point-to-point encryption tunnel protocol,It establishes a secure, encrypted tunnel over a public network through virtual private network (VPN) technology.L2TP is a VPN protocol based on Layer 2 switching technology, which encapsulates data packets into logical links.And transmit over that logical link.
How it works: PPTP is a VPN protocol based on client/server mode, which requires client software to be installed;L2TP, on the other hand, is based on open standards and does not require specific client software support.
Data security: PPTP uses a shared key for data encryption, and its security is relatively low;L2TP uses a higher level of authentication and encryption mechanisms, such as TLS, which has higher security.
Network topology: PPTP supports a variety of network topologies, including point-to-point, star, etc;L2TP, on the other hand, is mainly applicable to the LAN environment within the enterprise.
Applicable scenarios: PPTP is usually used for remote access to internal resources or mobile office scenarios;L2TP is more suitable for building a secure VPN network within an enterprise.
To build your own VPN, you first need to ensure that the Lte router has been successfully connected to the Internet and has the corresponding hardware conditions.The specific steps are as follows:
Select the VPN protocol: Select the appropriate VPN protocol according to the actual needs, such as PPTP or L2TP.
Configure the VPN client: install the appropriate VPN client software on the Lte router,And connect it to the company's internal network or to an external VPN server.
Set VPN parameters: Set corresponding parameters according to the selected VPN protocol, such as user name, password, encryption algorithm, etc.
Testing and verification: After the connection is complete, testing and verification is required to ensure that data is being transmitted correctly between the Lte routers.
Security policy and firewall configuration: In order to protect the network security, the access control list of the Lte router needs to be configured appropriately.Restrict unauthorized access and attacks.
Summary and notes: When building your own VPN, you need to adjust the parameters and configuration flexibly according to the actual situation.To ensure the security and stability of the network. At the same time, attention should be paid not to leak important information to avoid potential safety hazards.
Through the above steps, the secure connection and data transmission between Lte routers can be realized.It should be noted that when using VPN, we need to abide by relevant laws, regulations and security regulations.Ensure that there is no threat to the company's internal network or disclosure of important information.With the continuous progress of technology and the continuous growth of application requirements, it is recommended to update and maintain your own VPN network regularly.To adapt to new security threats and business requirements.
