Explanation:
Graphical user interface, text, application, table Description automatically generated

Box 1: add a virtual network gateway
Box 2: use remote gateways
Each virtual network, regardless of whether peered with another virtual network, can still have its own gateway to connect to an on-premises network. When you peer virtual networks, you can also configure the gateway in the peered virtual network as a transit point to an on-premises network. In this case, the virtual network that uses a remote gateway cannot have its own gateway. A virtual network can have only one gateway that can be either a local or remote gateway (in the peered virtual network).
Reference:
https://docs.microsoft.com/en-us/azure/virtual-network/virtual-network-peering-overview