NewCIDR returns a range that iterates through a block of IP addreses in pseudorandom order, with a fixed port.

NewPortRange returns a PortRange from low to high on the supplied IP address.

ErrCIDROverflow is returned when a CIDR block is too large.

The CIDR crawl-strategy iterates through a subnet in pseudorandom order, skipping over the network and broadcast addresses, issuing requests to a fixed port.

PortRange iterates through ports on the specified IP, in order, from Low to High.

TranscoderCIDR decodes a uint8 CIDR block.