Hi FNAC admins
Integration is fine and all works great so far except when I add a new VLANs in my FortiLink it is not detected by FortiNAC, while all pre-existing VLANs are all detected.
Performed Read VLANs, Resync Interfaces, Validate Credentials, L2/L3 poll, but new VLANs still not detected.
I mean don't see the new VLANs when try Model Config, and don't see then when I try Test Device Mapping.
Even when I assign the new VLAN manually to to a port on my FGT, the FNAC doesn't want to reflect this change (it keeps only known VLANs).
Opened a ticket but no fix so far.
Any idea about this issue?
Solved! Go to Solution.
Created on ‎11-12-2025 07:30 AM Edited on ‎11-12-2025 07:36 AM
Based on the documentation, the VLAN information should be extracted with REST API.
I didn't found any reported issue related to this behavior. I tried to emulate it in a lab (FOS 7.2.11) and the API call used for it should be:
https://10.0.10.1:443/api/v2/cmdb/system/interface?filter=type==vlan&access_token=*****&format=name|vdom|vlanid|interface&vdom=*
the output should list all the VLANs like:
{
"name":"ISOL-F",
"q_origin_key":"ISOL-F",
"vdom":"root",
"interface":"port5",
"vlanid":2501
}
You can check from FNAC logs by enabling this debugs:
$ device -ip <IP> -setAttr -name DEBUG -value "TelnetServer ForwardingInterface"
or from an external API system and check the response of the FGT when asked to provide the VLAN information.
With debugs enabled you can also try to run:
# exe enter
$ updatevlans -ip 10.0.10.1
Good to know the issue is fixed. The Read VLANs button is a bit hard to find on FGT devices, did you use this one?
Yes it is that one.
Hi Emirjon
Now the new VLANs are added without entering the updatevlans command.
It seems the first time I entered it has fixed the issue for good.
Thanks again for the solution.
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