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The appliance imports zone data through a zone transfer. Therefore, the source name server must be authoritative for the zone data being imported. You must also configure the source name server to allow zone transfers to the destination appliance. On the source name server, you might need to modify the allow-transfer substatement to include the IP address of the destination appliance prior to importing the data. If you are importing zone data to an HA pair, use the VIP (virtual IP) address shared by the HA pair. For a single independent appliance, use the LAN IP address. If you are importing zone data to a Grid, always use the IP address of the Grid Master.
If the source name server is an Infoblox appliance, you can configure it to allow zone transfers as described in Enabling Zone Transfers. Note that a NIOS appliance, acting as the primary name server for a zone, by default allows zone transfers to its secondary name servers. If the zone import fails, the zone to which the data is imported will be disabled and the system does not create records and delegated subzones.
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