Editorial: number figures

![A diagram illustrating a hub-and-spoke network.](./media/hubspoke.drawio.png)

Figure { seq fig }: A diagram illustrating a hub-and-spoke network

**Figure 4.2.2-1: A diagram illustrating a hub-and-spoke network**

In a mesh network, clients and gateways establish direct tunnels between each other. A management server is used to authenticate VPN clients and gateways, and to configure nodes.

![A diagram illustrating a mesh network.](./media/mesh.drawio.png)

Figure { seq fig }: A diagram illustrating a mesh network

**Figure 4.2.2-2: A diagram illustrating a mesh network**

### 4.2.3 VPN client