proxy - IP based load balance in nginx - Ask Ubuntu

i have 2 backend server running on 192.168.0.101:8080 , 192.168.0.102:8080.

i have nginx running on 192.168.0.111:80, want force nginx reverse traffic in specific backend srever ip.

geo $upstream {         192.168.0.150 backend-1;         192.168.0.250 backend-2;         default backend-1; }  upstream backend-1 {    ip_hash;    server 192.168.0.101:8080; }  upstream backend-2 {    ip_hash;    server 192.168.0.102:8080; }   server {         listen 80;          location / {         proxy_pass http://$upstream;         proxy_redirect off;             proxy_set_header host               $host;             proxy_set_header x-forwarded-host   $host;             proxy_set_header x-forwarded-server $host;             proxy_set_header x-real-ip          $remote_addr;             proxy_set_header x-forwarded-for    $proxy_add_x_forwarded_for;         }                                                                     } 

i confused configuration. gonna work meant ? every request 192.168.0.150 go backend-1(192.168.0.102:8080) ? , 192.168.0.250 in backend-2 ?

question: not redirecting based on ip addresses. why ?

the working config:

geo $upstream {         default backend-1;         192.168.0.150 backend-1;         192.168.0.250 backend-2; }  upstream backend-1 {    server 192.168.0.101:8080; }  upstream backend-2 {    server 192.168.0.102:8080; }   server {         listen 80;          location / {         proxy_pass http://$upstream;         proxy_redirect off;         proxy_set_header host               $host;         proxy_set_header x-forwarded-host   $host;         proxy_set_header x-forwarded-server $host;         proxy_set_header x-real-ip          $remote_addr;         proxy_set_header x-forwarded-for    $proxy_add_x_forwarded_for;         }                                                                     }