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5.3. Network

The Network screen is used to configure:
Procedure 5.1. Hostname Configuration
  1. To set or change the hostname select the Hostname field and enter the new hostname.
  2. Select <Apply>, and press Enter to save changes to the hostname.
  3. Result:
    The hostname is updated.
Procedure 5.2. DNS Configuration
The Hypervisor supports the manual specification of one or more Domain Name System (DNS) servers to use when resolving host and domain names. Where the DNS server(s) chosen do not validate they will be blanked out and ignored.
  1. To set or change the primary DNS server select the DNS Server 1 field and enter the IP address of the new primary DNS server to use.
  2. To set or change the secondary DNS server select the DNS Server 2 field and enter the IP address of the new secondary DNS server to use.
  3. Select <Apply>, and press Enter to save changes to the DNS configuration.
  4. Result:
    The primary and secondary DNS servers queried by the Hypervisor are updated.
Procedure 5.3. NTP Configuration
The Hypervisor supports the specification of one or more Network Time Protocol (NTP) servers with which the Hypervisor should synchronize the system clock. It is important that the Hypervisor is synchronized with the same time source as the Red Hat Enterprise Virtualization Manager. This ensures accurate time keeping across the Red Hat Enterprise Virtualization environment.
  1. To set or change the primary NTP server select the NTP Server 1 field and enter the IP address or hostname of the new primary NTP server to use.
  2. To set or change the secondary NTP server select the NTP Server 2 field and enter the IP address or hostname of the new secondary NTP server to use.
  3. Select <Apply>, and press Enter to save changes to the NTP configuration.
  4. Result:
    The primary and secondary NTP servers queried by the Hypervisor are updated.
Procedure 5.4. Network Interface Configuration
For each network interface detected the Hypervisor will display the:
  • Device,
  • Status,
  • Model, and
  • MAC Address.
At least one network interface must be configured before the Hypervisor is able to connect with the Red Hat Enterprise Virtualization Manager.
  1. Device Identification

    Select the network interface to be configured from the list and press Enter.
    In some cases it may be unclear which physical device an entry in the list refers to. Where this is the case the Hypervisor is able to blink the physical device's network traffic lights to assist with identification. To make use of this facility select the entry from the list and, then select the <Flash Lights to Identify> button. Press Enter and, take note of which physical device's lights start blinking. The configuration screen for the selected device will be displayed.
  2. IPv4 Settings

    The Hypervisor supports both dynamic (DHCP), and static IPv4 network configuration.
    • Dynamic (DHCP) Network Configuration

      Dynamic network configuration allows the Hypervisor to be dynamically assigned an IP address via DHCP. To enable dynamic IPv4 network configuration select the DHCP option under IPv4 Settings and press Space to toggle it to enabled.
    • Static Network Configuration

      Static network configuration allows the Hypervisor to be manually assigned an IP address. To enable static IPv4 network configuration select the Static option under IPv4 Settings and press Space to toggle it to enabled.
      Selection of the Static option enables the IP Address, Netmask, and Gateway fields. The IP Address, Netmask, and Gateway fields must be populated to complete static network configuration.
      In particular it is necessary that:
      • the IP Address is not already in use on the network,
      • the Netmask matches that used by other machines on the network, and
      • the Gateway matches that used by other machines on the network.
      Where it is not clear what value should be used for the IP Address, Netmask, or Gateway field consult the network's administrator or consider a dynamic configuration.
      Example 5.1. Static IPv4 Networking Configuration
      IPv4 Settings
      [ ] Disabled [ ] DHCP [*] Static
      IP Address: 192.168.122.100_ Netmask: 255.255.255.0___
      Gateway     192.168.1.1_____
      

  3. VLAN Configuration

    If VLAN support is required then populate the VLAN ID field with the VLAN identifier for the selected device.
  4. Save Network Configuration

    Once all networking options for the selected device have been set the configuration must be saved.
    1. Select the <Apply> button and press Enter to save the network configuration.
    2. The Confirm Network Settings dialog box will appear. Ensure that the Ok button is selected and press Enter to confirm.
  5. Result:
    The Network screen is displayed. The device is listed as Configured.