content_image/985609.jpg
The Hardware Management Appliance connectivity for multiple CPC environments (z15 N-2 only) is shown in Figure 10-12. 

<img src='content_image/985609.jpg'>

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. 

## 10.3.3 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) 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). 

