Reported-by: nosajsnikta on github
Closes #5874
12.1 OpenLDAP hangs after returning results
12.2 LDAP on Windows does authentication wrong?
12.3 LDAP on Windows doesn't work
+ 12.4 LDAPS with NSS is slow
13. TCP/IP
13.1 --interface for ipv6 binds to unusable IP address
https://github.com/curl/curl/issues/4261
+12.4 LDAPS with NSS is slow
+
+ See https://github.com/curl/curl/issues/5874
+
13. TCP/IP
13.1 --interface for ipv6 binds to unusable IP address