IPSec Site to Site VPN issue between ASA 5520 and pfsence device

[Adewumi Adewale]

Dear all,
I have two sites running IPSec site to site VPN between ASA 5520 and PfSense device. The VPN tunnel established successfully. But interesting traffic are not going through the tunnel. When I initiate icmp from Pfsence device the ping is not going through, when debug on the ASA, I see icmp echo request from the PFSENCE.

Kindly assist.

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[esink4601]

I know this post is really old, but I'm having this same issue. VPN Tunnel is up, but no traffic going through. Working with my team to figure this out and will repost when resolved.