Security:  The configuration of network components, such as routers or firewall rules, is  beyond the scope of this book. Whenever the networks are interconnected, security  exposures can exist. For more information about HMC security, see  Integrating the  Hardware Management Console‘s Broadband Remote Support 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 (v.2.14.1) console help system or see IBM Knowledge Center. At IBM Knowledge Center, click  IBM Z . Then, click  z14 . 11.3.1 Network planning for the HMC and SE 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: GLYPH<SM590000> Lightweight Directory Access Protocol (LDAP) support, which can be used for HMC user  authentication GLYPH<SM590000> Network Time Protocol (NTP) client/server support GLYPH<SM590000> RSF through broadband GLYPH<SM590000> HMC access through a remote web browser GLYPH<SM590000> Enablement of the SNMP and CIM APIs to support automation or management  applications, such as IBM System Director Active Energy Manager (AEM) These examples are shown in Figure 11-11. HMC Corporate intranet network Internet HMC July 14 14:21:00 2007 UTC NTP servers HMC remote web browser Internet NTP servers  LDAP ser ver IBM Systems Director Active Energy Manager Ethernet  switch IBM Remote  Support  Facility (RSF) Figure 11-11 HMC connectivity Chapter 11. Hardware Management Console and Support Elements  419