We have the possibility to allow filtering in various places for IPv4 and IPv6 addresses. To have more complex filter possibilities we have an own syntax, e.g. 192.168.1.0-255. For administrators, it is a common way to describe networks in CIDR notation like 192.168.1.0/24 from /0 until /32 for the number of bits in the subnet mask. This would be the same for IPv6 with /0 to /128.