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Liza1
Liza1
Explorer II
July 23, 2025
Question

FortiGate Dial UP with Cisco

  • July 23, 2025
  • 2 replies
  • 897 views

Hello, I’m interested in the following information.
I have a FortiGate Firewall 90G, and I need to establish tunnels with many Cisco routers — about 100 of them.
Is there any example or method that would make this setup easier, so I don’t have to manually configure 100 individual tunnels?

For example, is it possible to configure a Dial-Up VPN on the FortiGate, where the Cisco routers act as clients and connect using a pre-shared key (PSK)?

I’d like to hear your opinion on this. Thank you in advance!

2 replies

hst1
Staff
hst1
Staff
July 25, 2025

Hello team,

 

It is not possible to configure dialup VPN from the cisco router instead you can follow the article and configure the VPN from FortiGate to cisco

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-setup-IPsec-VPN-between-FortiGate-and-Cisco/ta-p/346845

 

Regards 

    Richie_C
    Staff
    Richie_C
    Staff
    July 25, 2025

    Hi @Liza1 

     

    I believe that it would be possible for the FortiGate to be the dialup server. I would start with the VPN wizard (VPN > IPSEC Wizard) and select the hub and spoke option. In this case, the FortiGate will be the hub. You would then have to match up the settings manually for the Cisco side.

     

    Regards

     

     

     

     

     

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