It fails to connect to the requested server if iManager is listening only on IPv4 address with the following error:
Unable to connect to the requested server. Verify the name/address and port.
To configure IPv6 for iManager to work with eDirectory, you must enable IPv6 using the following steps:
Set the following properties in the catalina.properties file and restart Tomcat.
java.net.preferIPv4Stack=false
java.net.preferIPv4Addresses=true
Note that java.net.preferIPv4Stack applies for iManager to work with eDirectory and java.net.preferIPv4Addresses applies for browsers to work with iManager.
Go to LDAP options > View LDAP Server > Connections > LDAP Server, then add LDAP interfaces for the IPv6 addresses with port numbers.
ldap://[xx::xx]:389 ldaps://[xx::xx]:636
Configure the Role-Based Services, then log out from the session and log in again.