so following the link you have posted my version does not support proxy_bind?


# My Version
nginx version: nginx/1.10.2



syntax: proxy_bind address [transparent] | off;
Default: —
Context: stream, server
This directive appeared in version 1.9.2.
Makes outgoing connections to a proxied server originate from the specified local IP address. Parameter value can contain variables (1.11.2). The special value off cancels the effect of the proxy_bind directive inherited from the previous configuration level, which allows the system to auto-assign the local IP address.

The transparent parameter (1.11.0) allows outgoing connections to a proxied server originate from a non-local IP address, for example, from a real IP address of a client:

proxy_bind $remote_addr transparent;