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Quantum_sec
Quantum_sec
New Member
December 13, 2025
Question

VDOM AND ROOT INTERCOMMUNICATION

  • December 13, 2025
  • 2 replies
  • 261 views

i have an urgent situation ans i need your expertise, i have implemented a vdom on my network, i had issues with one of my segments or ip blocks, i configured another root interface, but unfortunately, this new root interface is not able to communicate with some of the existing vdom's, Kindly share a guide or your support shall be appreciated.

Thanks 

2 replies

ezhupa
Staff
ezhupa
Staff
December 15, 2025

When creating VDOMs on the FGT, the VDOMs itself are connected via intervdom links.
Think of it as logically separating the device into 2 virtual devices.
For communication between these VDOMs to work, you would need policies to allow the traffic from one side to the other like they were 2 separate devices.
The below link that was added by @funkylicious is very useful in understanding the components and understanding how it works.

https://docs.fortinet.com/document/fortigate/7.6.4/administration-guide/335646/inter-vdom-routing-configuration-example-internet-access

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