rangeToCidr() function
Covers an address range with the fewest CIDR records that fit it exactly.
Signature:
export declare function rangeToCidr(start: string, end: string, type?: NetworkType, canonical?: boolean): string[];Parameters
|
Parameter |
Type |
Description |
|---|---|---|
|
start |
string |
first address in the range, inclusive |
|
end |
string |
last address in the range, inclusive |
|
type |
(Optional) the family, if known; omit to have it detected from | |
|
canonical |
boolean |
(Optional) for IPv6, render expanded rather than compressed addresses |
Returns:
string[]
The records covering exactly [start, end].
Exceptions
TypeError if either address is invalid, or if type disagrees with start. Note that only start is checked against type, so a mismatched end is converted as whatever family start established.
Default Value
canonical defaults to false
Remarks
intRangeToCidr() with both ends converted by ipToInt() first — the same minimal-cover behaviour, taking text instead of integers.
Example
rangeToCidr('10.0.0.0', '10.0.0.255'); // ['10.0.0.0/24']
rangeToCidr('10.0.0.1', '10.0.0.2'); // ['10.0.0.1/32', '10.0.0.2/32']Read this page as plain markdown — no HTML, no navigation. For pasting into an LLM, or for an agent to fetch.