Nginx stream pass client ip address to backend

root@oogway:~# grep -E -v "^$|^#|#" /usr/local/nginx/nginx.conf
user  nginx;
worker_processes  1;
error_log  /var/log/nginx/error.log;
error_log  /var/log/nginx/error.log  notice;
error_log  /var/log/nginx/error.log  info;
events {
    worker_connections  1024;
}
stream {
    include /usr/local/nginx/stream.conf.d/*.conf;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
}
root@oogway:~#

##################################################################

root@oogway:~# grep -E -v "^$|^#|#" /usr/local/nginx/stream.conf.d/443.conf
map $ssl_preread_server_name $name {
    default original_dest;
    vpn.ma3x.org vpn_https;
}
upstream original_dest {
    server 127.0.0.1:443;
}
upstream vpn_https {
    server 127.0.0.1:8443;
}
log_format stream_routing '$remote_addr [$time_local] '
                          'with SNI name "$ssl_preread_server_name" '
                          'proxying to "$name" '
                          '$protocol $status $bytes_sent $bytes_received '
                          '$session_time';
server {
    listen 9443;
    ssl_preread on;
    proxy_pass $name;
    access_log /var/log/nginx/stream_443.log stream_routing;
    ssl_protocols TLSv1.1 TLSv1.2;
}
root@oogway:~#