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IP Address Ranges

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

Caution:

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:*:*:*:*:*