HAProxy protocol support?

[Paul B. Henson]

So management is insisting that we migrate our openLDAP systems from on 
premise into the cloud <sigh>. Specifically, AWS behind one of their 
load balancers.

However, we currently rely upon some level of IP address based access 
control to distinguish between on-campus and off-campus clients. The 
Amazon load balancers do client NAT, so the back end servers have no 
idea who is connecting at the TCP/IP level.

They do support the haproxy in band protocol for supplying this 
information from the load balancer to the server, but that requires 
specific support from the server to do. I don't see any such support in 
openldap or any evidence of past discussion regarding it.

Is this something that would be considered as a possible feature to be 
included at some point, or something not desired as part of the code base?

Thanks...