13.4. IPv6 requirements for IdM clients

Identity Management (IdM) does not require the IPv6 protocol to be enabled in the kernel of the host that you want to enroll into IdM. For example, if your internal network only uses the IPv4 protocol, you can configure the System Security Services Daemon (SSSD) to only use IPv4 to communicate with the IdM server. You can do this by inserting the following line into the [domain/NAME] section of the /etc/sssd/sssd.conf file:

lookup_family_order = ipv4_only