Any way to deal with clients breaking the limit zone

[locojohn]

Hello Maxim,

Sorry about highjacking this thread, but I think my question is
relevant.  In the nginx configuration I have:

        # limit simultaneous connections
        limit_conn_zone $binary_remote_addr zone=addr:1m;
        limit_conn addr 16;

But the error_log file says:

2012/01/11 21:41:39 [warn] 10140#0: *2959 limiting connections by zone
"addr", client: 127.0.0.1, server: , request: "GET / HTTP/1.0", host:
"mysite.com", referrer: "http://code.google.com/p/slowhttptest/"
2012/01/11 21:41:40 [warn] 10140#0: *2962 limiting connections by zone
"addr", client: 127.0.0.1, server: , request: "GET / HTTP/1.0", host:
"mysite.com", referrer: "http://code.google.com/p/slowhttptest/"

Question is, why 127.0.0.1 for the remote client address?  It should
have nothing to do with loopback host address.   It must be external
IP.

Any workaround?   Also, I noticed that "server:" is empty.   Any other
reason for that?   I have a dozen of virtual hosts configured with
fastcgi_pass to php-fpm.

Many thanks for your assistance.

nginx/1.1.12

Andrejs

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,203013,221055#msg-221055