Getting real ip with Network Load Balancer

[류성훈]

I want to get my real ip (not cloudflare and load balancer).

So I have put this source to nginx.conf

# Last updated Sat Jul 30 11:17:32 UTC 2016

set_real_ip_from 103.21.244.0/22;

set_real_ip_from 103.22.200.0/22;

set_real_ip_from 103.31.4.0/22;

set_real_ip_from 104.16.0.0/12;

set_real_ip_from 108.162.192.0/18;

set_real_ip_from 131.0.72.0/22;

set_real_ip_from 141.101.64.0/18;

set_real_ip_from 162.158.0.0/15;

set_real_ip_from 172.64.0.0/13;

set_real_ip_from 173.245.48.0/20;

set_real_ip_from 188.114.96.0/20;

set_real_ip_from 190.93.240.0/20;

set_real_ip_from 197.234.240.0/22;

set_real_ip_from 198.41.128.0/17;

set_real_ip_from 199.27.128.0/21;

set_real_ip_from 2400:cb00::/32;

set_real_ip_from 2405:8100::/32;

set_real_ip_from 2405:b500::/32;

set_real_ip_from 2606:4700::/32;

set_real_ip_from 2803:f800::/32;

set_real_ip_from 130.211.0.0/22; #Google IP

real_ip_header X_Forwarded_For; #CF-Connecting-IP;

To check my ip, I made simple rails source.

return render :json => {:ip => request.ip, :remote_ip => request.remote_ip, :x_forwarded_for => request.env['HTTP_X_FORWARDED_FOR'], :client_ip => request.env['HTTP_CLIENT_IP'], :cf => request.env['CF-Connecting-IP']}

{"ip":"130.211.0.145","remote_ip":"130.211.0.145","x_forwarded_for":"(REAL IP), 141.101.85.141, 130.211.16.204, 130.211.0.145","client_ip":null,"cf":null}

But ip was not my ip, it's LoadBalancer's. What I was wrong?  I tried a lot of time over 6 hours.

 

[류성훈]

I resolved this problem.

put this line

set_real_ip_from 130.211.0.0/16;

real_ip_header X-Forwarded-For;

real_ip_recursive on;

2016년 7월 31일 일요일 오후 3시 32분 12초 UTC+9, 류성훈 님의 말:

[Kamran (Google Cloud Support)]

Hello,

I'm glad that you've resolved the issue and thanks for sharing your solution. This can help other people who are facing the same problem.

Sincerely,