OPNsense Forum

English Forums => Virtual private networks => Topic started by: Math43 on March 21, 2025, 05:12:06 PM

Title: IPSEC S2S Issues
Post by: Math43 on March 21, 2025, 05:12:06 PM
Hello,

I've got issue with a IPSEC tunnel site to side between Opnsense and Fortigate.

Here is my setup:

NET A <-> FORTIGATE <-> WAN <-> OPNSENSE <-> NET B

I can access NET A from NET B but I can't access NET A to NET B.

On my Fortigate I see packet going through corresponding IPSEC but I see nothing on Opnsense side (with tcpdump).

What could possibly be wrong ?

Thanks a lot.

Regards,
Mathieu
Title: Re: IPSEC S2S Issues
Post by: viragomann on March 21, 2025, 06:19:03 PM
Missing firewall rules?
Title: Re: IPSEC S2S Issues
Post by: Math43 on March 24, 2025, 09:20:21 AM
My firewall is configured to accept any packet on ipsec interface.