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How to secure communication between two sites connected to the Internet?
Use Site-to-Site IPsec VPN tunnel between two Huawei routers. IPsec VPN is an open standard protocol suite, defined by the IETF in the following RFCs: 2401, 2402-2412, 2451. IPSec is a widely used protocol for securing traffic on IP networks, including the Internet. IPSec can encrypt data between various devices, including router to router, firewall to router, desktop to router, and desktop to server.
How to configure IPsec VPN using Huawei CLI?
Let’s assume that we have two sites, Site1 and Site2. Both sites have PCs connected to the LAN network, PC1 and PC2 respectively. The sites are connected through WAN network (in our case labnarioR2 router simulates WAN). We want to secure communication between PC1 and PC2. To do so, we have to configure IPSec VPN tunnel between both sites. In our case tunnel will be established between labnarioR1 and labnarioR3 routers. Both routers will be responsible for data encryption and decryption using specified algorithms.