IPSec VPN not passing traffic

[Irwin W.]

Hi I have two pfSense on either side of the tunnel both running version 2.4.4

I am able to bring up my tunnel but no traffic is passing.

On both sides I have an IPsec rule allowing any any for the firewall.

Here are my configs.

Can anyone let me know what I may have missed?

[JOTS]

I recently had a similar problem. I could ping across the tunnel, but most other traffic would fail after upgrading to 2.4.4. Disabling Asynchronous Cryptography in VPN > IPsec > Advanced seems to have corrected the problem for me. As far as I know, this setting is not available in older versions.

[Irwin W.]

Thanks for the info.

I just checked on both systems and this option was already disabled.

Should I maybe enable it?

Interestingly though:

• pfSense A is having trouble with pfSense B's site to site tunnel
• pfSense B is however able to establish 4 other siste to site tunnels successfully and communicate. THis 5th tunnel to pfSense A just refuses to work.