Limitations and Precautions for Regions and Region Groups

Hardware Requirements

The regions and region groups is supported by all models.

License Requirements

The regions and region groups is not license-controlled.

Limitations

Only IPv4 addresses are supported.

Precautions

• User-defined regions have a higher priority than predefined regions in the region identification signature database, regardless of whether the database is updated.
• The undo add address command cannot delete preset IP addresses in predefined regions. To override a preset IP address in a predefined region, add this IP address to another region if you know the region of the IP address or add the address to the region named "unknown-zone" if you do not know the region of the IP address.
• If the IP address you are adding to a predefined region has been added to a user-defined region or predefined region, the addition takes effect and the IP address is removed from the predefined or user-defined region to which the IP address belonged.
• You can delete the entire address range of a region, but you cannot delete part of the address range. For example, if you have added IP address range 10.20.20.20 to 10.20.20.30 for a region, you cannot delete 10.20.20.20 to 10.20.20.25.
• In the traffic map, if the locations of some regions with traffic data are incorrect, the regions to which the IP addresses belong may be incorrect. In this case, add the IP addresses to the correct regions.