IP Address Ranges

Use the following guidelines to input IP address ranges in a single string.

Caution:

  • If you are defining conditions for IP address ranges in filters, queries, and rules, do not mix IPv4 and IPv6 addresses within the same IP address range.
  • If you are defining your asset model and network zones, you may have mixed-family IP address ranges. However, Micro Focus does not recommend this. You might find the results confusing. See Managing Zones for related information.

Two-address range

A two-address range is in the format firstAddress - lastAddress, meaning any address between an arbitrary range of any two addresses, inclusive.

IPv4 range: 192.168.0.0 - 192.168.255.255

IPv6 range: 2001:db8:fd0c:: - 2001:db8:fd0c:ffff:ffff:ffff:ffff:ffff

CIDR notation (see RFC 4632)

The CIDR notation is in the format address/prefix-length. This format is more restrictive than the two-address range format where the range starts and ends.

IPv4 range: 192.168.0.0/24

IPv6 range: 2001:db8:fd0c::/64

Wildcard expressions

Fields on the right end of an address may be replaced with an asterisk, with no numeric data to the right of the first asterisk. The wildcard represents the range of all values for the field, from all-zero bits to all-one bits. This format is more restrictive than the two-address range format in where the range starts and ends.

IPv4 range: 192.168.*.*

IPv6 range: 2001:db8:fd0c:*:*:*:*:*