The Hardware Management Appliance connectivity for multiple CPC environments (z15 N-2  only) is shown in Figure 10-12. Various methods are available for setting up the network. Designing and planning the HMC  and SE connectivity is the clients’ responsibility , based on the environment’s connectivity and  security requirements. Security:  The configuration of network components, such as routers or firewalls, is beyond  the scope of this document. Whenever the networks are interconnected, security  exposures can exist. For more information about HMC security, see  Integrating the  Hardware Management Console‘s Broadband Remote Su pport Facility into your  Enterprise , SC28-6951.  For more information about the HMC settings that are related to access and security, see  the HMC and SE console help function or IBM Knowledge Center. Plan the HMC and SE network connectivity carefully to allow for current and future use. Many  of the IBM Z capabilities benefit from the various network connectivity options that are  available. The following functions, which depend on the HMC connectivity, are available to the  HMC: 10.3.3 Network planning for the HMC and SE Figure 10-12 HMC virtual appliance managing multiple CPCs GLYPH<SM590000> Lightweight Directory Access Protocol (LDAP) support, which can be used for HMC user  authentication GLYPH<SM590000> Network Time Protocol (NTP) support GLYPH<SM590000> RSF through broadband GLYPH<SM590000> HMC remote access and HMC Mobile GLYPH<SM590000> RSA SecurID support GLYPH<SM590000> Enablement of the SNMP and CIM$^{1}$APIs to support automation or management  applications, such as IBM System Director Active Energy Manager (AEM). Chapter 10. Hardware Management Console and Support Element  421