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AEK
SuperUser
SuperUser
November 12, 2024
Question

Allow specific intra-SSID traffic

  • November 12, 2024
  • 2 replies
  • 3181 views

Hi FGT/FAP admins

I have a SSID in tunnel mode where I enabled "block intra-SSID traffic".

Now I need to allow intra-SSID traffic only between some specific clients on some specific ports. Is there a way to do that? I mean just the same way we do with zones (deny intra-zone traffic then enable exceptions with firewall rules).

2 replies

kaurs
Staff
Staff
November 12, 2024

Hi,

In tunnel mode, the traffic is completely blocked between 2 wireless clients on same SSID with block intra-SSID traffic option . Since both clients are connected to same subnet, firewall policy may not help here as policies are supposed to route traffic from interface to another.

Toshi_Esumi
SuperUser
SuperUser
November 12, 2024

@kaurs Is WiFi SSIDs different from SSL VPN case? With SSL VPN, you can control access between users with policies ssl.root<->ssl.root. So I thought it might be possible when you set ssid.interface<->ssid.interface policies.

Toshi

AEK
SuperUser
AEKAuthor
SuperUser
November 13, 2024

Yes I think it is different.

With SSL VPN the client-to-client traffic transit through FW, while (it I'm not wrong) for SSID it seems it doesn't leave the AP.

  • VPN: client <---> FortiGate <---> client
  • SSID: client <---> AP <---> client
AEK
HarshChavda
Staff
Staff
November 12, 2024

Hello @AEK ,

 

 You can try place the devices you want to allow communication between on separate SSIDs or VLANs and then setup firewall policy accordingly.

AEK
SuperUser
AEKAuthor
SuperUser
November 13, 2024

Hello Harsh

That will work indeed, but my requirement is to do it on the same SSID.

AEK