# Location Specification (IPv4)

## Purpose

Location Based Accounting provides the capability to automatically determine a device's location based on its IP address.

Use this form to specify IP address ranges and map them to zone IDs. When an IP device registers with the ICP, its IP address is compared to the ranges contained in the form. If the IP address falls within one of the ranges, the automatically determined zone for the device is that which is programmed against this range.

NOTE: This form provides Location Based Accounting based on IPv4 addresses only. You can also use the Location Specification (IPv6) form to configure Location Based Accounting based on IPv4 addresses.

## Conditions

- The IP Address Range – Start and End values must be in IP address format

- Address ranges must not overlap—that is, an address in one range cannot also be in another range. To illustrate, consider the following example:
  IP Range Start IP Range End
  10.112.92.10 10.112.92.20
  10.112.92.15 10.112.92.22
  Note that the first address in the second range, 10.112.92.15, is also in the first range. The system does not check for overlapping so take care to ensure your ranges are entered correctly.

- When the IP addresses are read as positive 4 byte integers, the IP Address Range – Start value must be less than or equal to the IP Address Range – End value.

- A newly defined IP address range must not overlap with an existing IP address range.

- A maximum of 500 IP Address ranges are supported.

- Multiple IP Address ranges can be associated with the same Zone ID
  A value assigned in software to co-located network devices for bandwidth management and Location Based Routing purposes. Also used for the display of local time on IP sets..

- For MiNet sets, ensure that the Zone Assignment Method is set to Default.

## Field Descriptions

Parameter | Description | Default Value
IP Range Start | Enter the first IP address in the range for a Zone ID A value assigned in software to co-located network devices for bandwidth management and Location Based Routing purposes. Also used for the display of local time on IP sets.. Valid IP addresses are 0.0.0.0 to 255.255.255.255. | Blank
IP Range End | Enter the last IP address in the range for a Zone ID. Valid IP addresses are 0.0.0.0 to 255.255.255.255. | Blank
Zone ID | Enter the Zone ID number from 1 - 999 that corresponds to the IP Address Range. This value must appear in the Network Zones form. | Blank
Zone Label | Display only field that shows the label assigned to the Zone ID. This value is programmed the Network Zones form. | Blank