ipPrefix

Description

Return the CIDR subnet for a given IP address and subnet size.

Syntax

Like many functions in DataPrime, ipPrefix supports two notations, function and method notation. These interchangeable forms allow flexibility in how you structure expressions.

ipPrefix(ip: string, subnetSize: number): string

(ip: string).ipPrefix(subnetSize: number): string

Arguments

Example

Use case: Derive the subnet from an IP address

Compute the subnet for a given IP when the number of mask bits is known.

{
    "ip": "155.123.7.4"
}

create ip_subnet from ipPrefix(ip, 10)

create ip_subnet from ip.ipPrefix(10)

Output

{
    "ip": "155.123.7.4",
    "ip_subnet": "155.64.0.0/10"
}