port forwording

hello, I am new to mikrotik. I have bought a new rb750gr3 yesterday. I have configured Load Balancing Using pppoe clients on WAN side and Configured a pppoe server On LAN side. Now i Want to do Port Forwording for my playstation 4.its showing me some NAT issue strict NAT etc. Kindly Help me,thank you

Sample

/ip firewall filter
add chain=input action=accept connection-state=established,related comment="Accept established related"
add chain=input action=accept in-interface=bridge-LAN comment="Allow LAN access to router and Internet"
add chain=input action=drop comment="Drop all other input"

add chain=forward action=accept connection-state=established,related comment="Accept established related"
add chain=forward action=accept connection-state=new in-interface=bridge-LAN comment="Allow LAN access to router and Internet"
add chain=forward action=accept connection-nat-state=dstnat comment="Accept Port forwards if configured"
add chain=forward action=drop comment="Drop all other forward"

/ip firewall nat
add chain=srcnat action=masquerade out-interface=ether-WAN comment="Default masq"
add chain=dstnat action=dst-nat in-interface=ether-WAN protocol=tcp to-addresses=1.2.3.4 dst-port=123 to-ports=123 comment="Sample Port Forward"

In NAT 2nd rule wich address i should use. There is another TP-LINK router betmeen my mikrotik and playstation4 which is conected as pppoe client and assingd an ip from my pppoe pool:10.0.0.1-10.0.0.254

PPoE TP=Link address.