Local Network Gateway Usage - Azure VPN

VPN
1

We are trying to connect site-to-site via Azure VPN to on-prem equipment. Our on-prem equipment is a Fortinet appliance. Reading through the documentation, do I need a local network gateway, or is that what the Fortinet firewall is representing? Im confused as to why I would need a VPN gateway in Azure along with a local network gateway in Azure. Two different devices connecting to each other within Azure and then to on-prem equipment? Seems like overkill.

If the local network gateway is needed, can someone expand (or paste a link) on what the local network gateway is really used for?

Here is the documentation that I have been reading thus far. https://docs.microsoft.com/en-us/azure/vpn-gateway/tutorial-site-to-site-portal

2

The Local Network Gateway is simply a representation of your fortigate. It basically just contains the gateway IP and the IP ranges of your on-prem networks used to build the routing table.

So it’s just a configuration item, it doesn’t actually cost anything.

3

Thanks for the reply. I understand now.