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HansAreg
New Contributor

VPN works only in one direction

Hello

I have a quiestion about VPN settings on a Fortigate 60D.

 

Basics:

- Two locations with separate local networks

- Location 1: Ubiquiti Unifi USG with public IP

- Location 2: Fortigate 60D with latest Firmware and public IP

- VPN is set up with a preshared key

- Static route (sending the remote subnet to the tunnel interface) and Firewall-Policies (from and to the local and the tunnel interface with the relevant subnets) created on the Fortinet

- Added the requested blackhole routes (RFC1918)

- No additional configuration on the USG

 

Result:

- Fortinet shows the tunnel as UP / No Errors in the Log

- The USG shows 0 Zone to Zone VPN's

- I can ping from the USG side to the Fortigate side

- I can not ping from the Fortinet to the USG side

- IPSec Monitor does not show any traffic when i try to ping from the Fortinet side (I checked the Route the Policies several times). It shows traffic when i ping from the USG side.

 

Questions:

- Has anybody configured a working connection between Fortigate and USG?

- It looks like there is no traffic going to the tunnel. Do i need to add some additional config on the Fortigate besides the Tunnel, the route and the policies?

 

Thanks for your support!

Hans-Peter

1 REPLY 1
jpretli2
Staff
Staff

Hi Hans-Peter,

 

> - I can not ping from the Fortinet to the USG side

Ping from Fortigate or or computer behind Fortigate?

 

Did you try #diag sniff packet any '' 4 a to identify if packet was routed into tunnel or not?

 

thanks

Jochen

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