Network requirements
As shown in Figure 20:
Site 1 and Site 2 in VPN A are two branches of a company. They use VLAN 5 to transmit traffic.
Because Site 1 and Site 2 are located in different areas, the two sites use the VPN access service of a service provider. The service provider assigns VLAN 100 to the two sites.
Configure nesting, so that the two branches can communicate through the service provider network.
Figure 20: Network diagram
