36 DOMINION SX I NSTALLATION AND O PERATIONS MANUALNetworkOverviewThe Network configuration screen provides an area for Administrators to define both the network andmodem (optional) settings for the unit.Figure 40 Sample of Network Configuration DisplaySome Dominion SX units come equipped with a 56Kbps (Kilobits per second) modem, which allows dial-in access to the unit from virtually any location in the world. On other Dominion SX units, there is aconnector on the rear panel for a user-supplied external modem. Client computers connect to the unit byestablishing a PPP (Point-to-Point Protocol) link between the client machine and the Dominion SX unit.Once the PPP connection is established, the client computer is physically on the same network as theDominion SX unit and can access the unit using Internet Explorer or Netscape browsers.There are three requirements for dialing into the unit:1. The phone line to the unit must be connected.2. The modem / PPP connection settings must be configured.3. If modem Dial Back is enabled, type a valid phone number to ensure successful modem callbackconnection. Type phone numbers from the command line interface (CLI) (under Modem) using SSH(or telnet if enabled). Phone number entries can contain numbers, hyphens, and spaces.4. The dial-up networking software on the user’s personal computer must be configured to establish aPPP connection from the client computer to the unit.Configure Network Parameters• IP address: IP address for the unit• IP subnet mask: Subnet mask to be used when deployed in the network• IP gateway: Gateway that the unit uses to communicate with other systems that are not on the samesubnet• Dominion SX Unit Name: Name to be associated with the unit, 64 characters in length. Validcharacters are A-Z, a-z, -, _, 0-9, no spaces or special characters allowed• Terminal Type: Type of terminal supported; default is VT100• Port Address: Port address to be used by the unit when communicating with other systems; the defaultport address is 51000, but can also be set to any value in the range of 1024-65536 (please verify thisvalue with your firewall administrator)• Domain name: For example mycompany.com; domain name is required to send SMTP messages bycertain mail servers. Unless you the mail server used in your company does NOT require thisinformation to send email, it is safe to fill in this information. Most mail servers will require thisinformation.• Port address for CC management: Port address is required for use by CommandCenter-SG (CC) todiscover Dominion SX units in the network. Default value is 5000; this value should NOT be changedunless instructed to do so by the CC administrator. It is possible that other devices connected to the
