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For Abiquo private, external and public networks, the platform can manage their corresponding VLANs with an ISC DHCP server. Abiquo recommends one DHCP server per physical datacenter. Add the DHCP service to Abiquo when creating or editing a datacenter. You can use the Remote Services DHCP server supplied with Abiquo or another compatible server. If you have many virtual networks, you might need a separate relay server to manage VLANs for the DHCP server. For unmanaged networks, you do not need to configure a DHCP server and you must provide the network addresses to the virtual machines outside of Abiquo.

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To install a DHCP Relay server with the Abiquo appliances see Automatically Configuring One DHCP Relay Serverconfiguring one DHCP relay server.

These configurations are designed for multiple VLAN networks, which by definition have separate VLAN tags and isolate DHCP broadcasts. The DHCP Server and VM communicate through broadcasts, which are also relayed, until the IP address of the VM is set, so there is no specific requirement for the IP address of the VNIC or NIC. However, it is recommended that the IP address range used for the VNICs or NICs is not part of any other networks. For example, you could use the upper range of the management network. If you have complex requirements, you may need to adapt these configurations.

If you need to use multiple relay servers, see Manually Configuring Multiple DHCP Relay Serversconfiguring multiple DHCP relay servers