How to config lxd proxy for fpt server in lxc container?

with lxc container ubuntu 18.04, named ‘store’
trying to get functionnal proftpd server…
the host is in 192.168.1.33 in a virtual box, and trying to set lxc proxy rules…
already set in proftpd :
PassivePorts 49152 65534
MasqueradeAddress 192.168.1.33

and in the host, defined proxy rules. lxc config show store
store80:
connect: tcp:127.0.0.1:80
listen: tcp:0.0.0.0:80
type: proxy
store3306:
connect: tcp:127.0.0.1:3306
listen: tcp:0.0.0.0:3306
type: proxy
storeftp21:
connect: tcp:127.0.0.1:21
listen: tcp:0.0.0.0:21
type: proxy
storeftppassive:
connect: tcp:127.0.0.1:49152-65534
listen: tcp:0.0.0.0:49152-65534
type: proxy

i can’t get fully functional ftp connexion.
in filezilla, i get

   |Status:|Connecting to 192.168.1.33:21...|
    |---|---|
    |Status:|Connection established, waiting for welcome message...|
    |Status:|Insecure server, it does not support FTP over TLS.|
    |Status:|Logged in|
    |Status:|Retrieving directory listing...|
    |Command:|PWD|
    |Response:|257 "/" is the current directory|
    |Command:|TYPE I|
    |Response:|200 Type set to I|
    |Command:|PASV|
    |Response:|227 Entering Passive Mode (192,168,1,33,225,161).|
    |Command:|LIST|
    |Error:|The data connection could not be established: ECONNREFUSED - Connection refused by server|

searched how to config this , but can’t find any positive way…
any help ?

I’m not sure, but you can try load the module nf_nat_ftp to see if it works ?