> Imagine the 192.168.100.100 is a public IP (for example 1.2.3.4),
> and the others are private IPs as they indeed are (192.168.*).
> The reason for me is to use internally (ie. between the proxy server
> and the backend server) only the private IPs.
The remote IP that your backend sees will be the client ip anyway, not
your internal IP, so whats the point?
> As said the idea and the setup works, but haproxy has a problem with it,
> and therefore there is a bug in haproxy.
Yet you did not explain what the actual bug is. You keep saying there is a
bug, but you don't explain it.
