NAT issue sending traffic over an established VPN

[frf]

Hi all,
Im having problems using NAT to send traffic through an established VPN.
These were the steps taken:

VPN was established and a tunnel created:

• tunnel: 172.31.225.192/29(source) 172.31.200.0/23(destination)

NAT rule was created (I was told to use the following IPs: 172.31.225.193/32(my end) 172.31.201.82/32(their end).

• Src addr: 10.10.10.10 (my local IP), Dest Addr:172.31.201.82/32,  NAT IP:172.31.225.193/32

Firewall rules were created (IPSEC) for the communicating IPs:

• 172.31.225.193/32 ->172.31.201.82/32

• 172.31.201.82/32 -> 172.31.225.193/32

Whenever I try to communicate logs show packets leaving through my public IP.
Any suggestions regarding the NAT configuration?

Thanks all,
FRF