IPSec is connected but not passing traffic

[NdubYu]

Hi Everyone,

Please bear with me but I am new to pfSense.

I have configured a site to site tunnel with pfSense and a UniFi USG Pro4 device.

The tunnel is up and connected but no traffic is passing.

I have done some reading and verified that I am allowing all traffic in my pfSense rules for the IPsec interface.

Can anyone think of what settings I might be missing?

pfSense Settings

UniFi USG Pro 4 Settings

[mikee]

@NdubYu Do you have the firewall active in the USG. Are you allowing traffic there too?

[stephen21]

@NdubYu
I appreciate this is an old topic, but i have the same problem
Were you able to resolve ?
What was the issue ?
Thank you