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You can configure more than one network interface on your on-prem host to separate management traffic and data traffic. Management traffic is traffic between the on-prem host and the Cloud Services Portal while data traffic includes traffic for your BloxOne service such as DNS forwarding proxy. By separating management and data traffic, your on-prem host will not become a weak point between two networks.

Configuring multiple network interfaces is also useful if you are hosting multiple BloxOne services that use the same Ethernet port on the same on-prem host. If your on-prem host has multiple interfaces, you can select specific interfaces for specific services and view the list of all available interfaces and IP addresses on the on-prem host.

Note

Infoblox supports multiple network interfaces on on-prem hosts that are deployed through physical appliances, baremetal Docker deployment, and OVA deployment using the OVA image downloaded from the Cloud Service Portal. However, you cannot configure multiple interfaces on an on-prem host that has either the DNS or DHCP service enabled.

Multiple Interface Considerations

Before you configure multiple network interfaces for your on-prem hosts, take the following considerations into account:

  • On baremetal deployments, if DNS forward proxy is running on the on-prem host and a new interface is added and configured, you must restart the DNS forwarding proxy service for it to listen on the new interface.
  • For baremetal deployments, you can configure multiple interface configuration through the Cloud Services Portal only after you have changed the service traffic configuration. For example, if you want to change the interface type from WAN to LAN, you must first change the service traffic from ALL to LAN.
  • The interface mode will be displayed as Unknown for baremetal deployments because the data cannot be discovered by the Cloud Services Portal.
  • If an on-prem host has both the WAN and LAN networks configured, the LAN network can be reached only from devices that have an IP address within the LAN network. For example, if the LAN has an address of 192.168.10.0/24 and the on-prem host has an IP address 192.168.10.100, then the on-prem host can be reached only from devices with IP addresses in the 192.168.10.1 to 192.168.10.254 range.
  • You cannot configure multiple network interfaces on an on-prem host that is running either the DNS or DHCP service.
  • You can use the Device UI to configure only the primary interface. You must add the secondary interface through the Cloud Services Portal.
  • IPv6 is not supported in the current release.

For information about how to configure multiple interfaces or modifying the settings on your on-prem hosts, see the IP Interface Settings section in Viewing and Modifying On-Prem Host Configuration.

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