How Get public IP in MultiWan environment

I have an RB951G-2HnD on the ether 3,4 and 5 I’ve placed 3 WAN connection, the ether2 is used to manage the MKT and the ether1 route to my pfsense fw.
Load balancing is OK, packet are correctly marked and no connection (such ssl bank and similar) was broken…
All it’s OK, but now I have to get the public IP address for each WAN connection (all dynamic IP, all PPPoE)
“/IP cloud print” report only one IP address and no report which wan the IP came from.
Can anyone help me to get all the IP and the related wan?