System information

Chapter 3. HMC overview and planning 53
Figure 3-8 shows a closer rear view of a model 570 with the cables identified.
Figure 3-8 Ports on rear of i570
3.3 HMC networking options
When you first install your HMC, you will have a number of networking options available to
you. You will have to decide which types of network are best for your environment. The types
of networking available are:
򐂰 Private direct
򐂰 Private indirect
򐂰 Private and open
3.3.1 Private direct networking
Private direct networking is an ethernet connect between port HMC 1 on the HMC and port
HMC 1 on the System i5 system. When you are making this connection, you do not need an
ethernet cross-over; a standard Ethernet cable will work. The network is provided by the
HMC, DHCP serving, DNS, and Firewall. These components can be established by the tasks
included in the Guided Setup wizard. See Figure 3-9.
HMC
Ports
SPCN
Ports
2x USB
2x LAN
Note: The following examples of HMC networking options are only for single SP on i5.
If you plan to connect your HMC to redundant SP(570/595), please see the reference on
redundant SP connection topics, in Chapter 8, “HMC duplication and redundancy” on
page 245.