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Fortinet SD-WAN

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By Sena Perdiana 1 min read


SD-WAN, or Software-Defined Wide Area Network, is a technology that simplifies and enhances the management and performance of WAN by using software-based control and automation to efficiently route and prioritize network traffic.



Network Topology

In this deployment, we’re gonna create a simple SD-WAN configuration to load balance traffic from LAN subnet to the Internet going through 2 ISPs

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Configuring SD-WAN

First, this is the Interfaces configuration

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Next create an SD-WAN Zone

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After that craete an SD-WAN Member containing the WAN1 interface and attach it to the Zone

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Then create another member for the WAN2

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And this is how the SD-WAN configuration ends up being

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On the SD-WAN Priority Rules, select the one your heart desires

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Next create a Static Route going out to the SD-WAN Interface

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And lastly, create a Firewall Policy to allow Local Subnet to reach the Internet through the SD-WAN Interface

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Testing SD-WAN

Now from a PC on the local subnet, test the Internet Connectivity

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And back on the Fortigate, we can see the traffic flowing through the SD-WAN Interface

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We can also see the allowed policy for the internet connectivity which is using the SD-WAN policy created earlier

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And because now it’s using SD-WAN, the traffic going out to the internet is load-balanced between the two ISPs

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Software Defined Networking, Fortinet SD-WAN
SD-WAN Fortigate
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