VPN Topology
VPN Technologies
Article REF: H5610 V2
VPN Topology
VPN Technologies

Author : Jean-Paul ARCHIER

Publication date: April 10, 2026 | Lire en français

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2. VPN Topology

There are several methods for classifying VPNs. One of them is based on the topology of these VPNs.

2.1 Site to Site

In this case, the VPN is used to connect the local networks of two sites, allowing full communication between the computers at both sites—provided that any firewall filters permit it.

In the example shown in Figure 3 , all machines on the 192.168.75.0/24 network can communicate with machines on the 192.168.89.0/24 network and vice versa, provided that the rules configured on the firewalls allow it.

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