Overview
8–4 iSTAR Ultra Installation and Configuration Guide
• Obtain the Domain Name Server addresses automatically.
• Define the host IP address or FQDN (Fully Qualified Domain Name) with which the 
master will communicate.
3. Use the C•CURE Administration application to configure:
• Master and member names. 
• Master and member IP and MAC addresses. 
4. Use the C•CURE Administration application to configure the cluster and download 
cluster information. During download, the following occurs:
• Master establishes a connection with C•CURE host. 
• C•CURE host downloads member address information.
• Members beacon a “request for service” message across the subnet.
• Master matches the “request for service” message with the member address 
information and downloads its’ own IP address.
• Members establish connections with the master.
WAN Configurations
You must perform the following steps because the ICU cannot detect an iSTAR address 
beyond the local subnet.
1. Connect and power on all iSTAR controllers.
2. Copy the ICU directory to a PC or laptop.
3. Connect the PC or laptop with the ICU to the subnet on which the target iSTAR resides.
4. Use the ICU to do the following:
• Identify MAC addresses for members.
• If not using DHCP, configure the IP address for the master 
• Configure gateway addresses for members and masters
NOTE
The ICU can connect to an iSTAR across a WAN provided you know the 
IP address of the remote iSTAR.
NOTE
 The ICU only sees iSTARs in the local subnet, by default, because ICU 
uses a broadcast to awaken iSTARs.
 An iSTAR in the WAN can be seen if the IP address is supplied to ICU.