How to solve nimble in docker container get private ip to hash match?

There are 2 container in server
1. Nginx (container ip = 172.20.0.2)
2. Nimble (container ip = 172.20.0.3)

Nginx config
proxy_pass hxxp://nimble:8081;
*hxxp = http (to fix this forum dont allow link)

Nimble log
[work1] E: cannot find hash match for 172.20.0.2 signature=[xxxxx]

How to pass client ip from nginx to nimble container instead nginx container ip?

Please take a look at blog.wmspanel.com/2014/04/streaming-from-behind-reverse-proxy.html