RED IP Address

hi all

first

thank you for accepting me to this group

second

i have UTM 9 at the main location, and branches have red10

the IP address at the remote offices shows the additional address that configured to this office at the UTM

example

*******

setting for the UTM server 

interface 90.90.90.2

setting for remote office one

interface IP 192.168.2.1

additional address 80.80.80.2

operation mode for RED is standard/unified

when i check IP at the (find my IP) it shows 80.80.80.2, is this normal? i thought it must show the UTM IP 90.90.90.2 since the traffic should be redirected to the UTM server 

in more words, i want the remote IP for each remote office to be the 90.90.90.1 by redirecting all the traffic

thanks in advance