12. LDAP and OpenLDAP
12.1 OpenLDAP hangs after returning results
+ 13 TCP/IP
+ 13.1 --interface for ipv6 binds to unusable IP address
+
+
==============================================================================
1. HTTP
See https://github.com/curl/curl/issues/622 and
https://curl.haxx.se/mail/lib-2016-01/0101.html
+
+
+13 TCP/IP
+
+13.1 --interface for ipv6 binds to unusable IP address
+
+ Since IPv6 provides a lot of addresses with different scope, binding to an
+ IPv6 address needs to take the proper care so that it doesn't bind to a
+ locally scoped address as that is bound to fail.
+
+ https://github.com/curl/curl/issues/686