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Configuring network interfaces

{Project} supports specifying multiple network interfaces for a single host. This lets you add physical, virtual, bonded, bridge, or BMC interfaces as needed for your network layout.

There are several types of network interfaces that you can attach to a host. When configuring an interface, select one of:

  • Interface: Allows you to specify an additional physical or virtual interface. There are two types of virtual interfaces you can create. Use VLAN when the host needs to communicate with several (virtual) networks by using a single interface, while these networks are not accessible to each other. Use alias to add an additional IP address to an existing interface.

  • Bond: Creates a bonded interface. NIC bonding is a way to bind multiple network interfaces together into a single interface that appears as a single device and has a single MAC address. This enables two or more network interfaces to act as one, increasing the bandwidth and providing redundancy.

  • BMC: Baseboard Management Controller (BMC) allows you to remotely monitor and manage the physical state of machines. For more information about BMC, see {InstallingServerDocURL}enabling-power-management-on-hosts_{project-context}[Enabling Power Management on Hosts] in {InstallingServerDocTitle}.

Note

Additional interfaces have the Managed flag enabled by default, which means the new interface is configured automatically during provisioning by the DNS and DHCP {SmartProxyServers} associated with the selected subnet. This requires a subnet with correctly configured DNS and DHCP {SmartProxyServers}. If you use a Kickstart method for host provisioning, configuration files are automatically created for managed interfaces in the post-installation phase at /etc/sysconfig/network-scripts/ifcfg-interface_id.