Code written with the invaluable assistance of ChatGPT

Summary of IP Range to CIDR Notations Conversion and CIDR Subset Check Project

In this project, we worked on converting IP ranges to CIDR notations and checking if one list of CIDR notations is a subset of another list. We started by analyzing the IP range 80.80.80.10 - 80.80.80.40 and arrived at the following CIDR notations:

[
  "80.80.80.10/31",
  "80.80.80.12/30",
  "80.80.80.16/28",
  "80.80.80.32/29",
  "80.80.80.40/32"
]
  

We then expanded our analysis to include the IP range 80.80.80.60 - 80.80.80.90 and arrived at the following additional CIDR notations:

[
  "80.80.80.60/30",
  "80.80.80.64/28",
  "80.80.80.80/29",
  "80.80.80.88/31",
  "80.80.80.90/32"
]
  

We combined all the CIDR notations into a single array for easy reference:

[
  "80.80.80.10/31",
  "80.80.80.12/30",
  "80.80.80.16/28",
  "80.80.80.32/29",
  "80.80.80.40/32",
  "80.80.80.60/30",
  "80.80.80.64/28",
  "80.80.80.80/29",
  "80.80.80.88/31",
  "80.80.80.90/32"
]
  

We also wrote a JavaScript function to check if one list of CIDR notations is a subset of another list:

function isSubsetOfCIDRs(cidrList, subsetList) {
  // Function code goes here
}
  

We made sure the function was compatible with the ServiceNow San Diego version and provided an example of how to use it in ServiceNow.