Skip to main content

Python AWS VPC CIDR available range finder with sub networks

Project description

PyVPC - CIDR free range resolver

Get available CIDR/sub networks ranges from your cloud network, This app will return all available networks that are not is use by a vpc, or sub network that are not is use inside a specific VPC.

It can also suggest networks, according to flags passed to this app, view examples below.

  • Current version supports only AWS VPCs.

Install

pip install pyvpc

Usage

aws:

pyvpc aws [-h] [--cidr-range CIDR_RANGE]
          [--suggest-range {0-32}]
          [--num-of-addr NUM_OF_ADDR] [--output {json}]
          [--region REGION] [--all-regions] [--vpc VPC]

Examples

  • Assuming there are two AWS VPCs with CIDRs: 10.20.0.0/16 and 10.30.0.0/16, executing command:

    pyvpc aws --cidr-range 10.0.0.0/8
    

    will return:

    | Lowest IP   | Upper IP       |   Num of Addr |   Prefix | Available   | ID                    | Name         |
    |-------------|----------------|---------------|----------|-------------|-----------------------|--------------|
    | 10.0.0.0    | 10.19.255.255  |       1310720 |          | True        |                       |              |
    | 10.20.0.0   | 10.20.255.255  |         65536 |       16 | False       | vpc-Ec9hQfmjk4sPCH65c | lev-test-vpc |
    | 10.21.0.0   | 10.29.255.255  |        589824 |          | True        |                       |              |
    | 10.30.0.0   | 10.30.255.255  |         65536 |       16 | False       | vpc-4WNpVY5wCLmdqfJLy | dev-k8s      |
    | 10.31.0.0   | 10.255.255.255 |      14745600 |          | True        |                       |              |
    
  • For example, a VPC with 10.50.0.0/16 cidr, executing command:

    pyvpc aws --vpc vpc-3w5cymcdnwjm389gq
    

    will return:

    | Lowest IP   | Upper IP      |   Num of Addr |   Prefix | Available   | ID                       | Name               |
    |-------------|---------------|---------------|----------|-------------|--------------------------|--------------------|
    | 10.50.0.0   | 10.50.63.255  |         16384 |          | True        |                          |                    |
    | 10.50.64.0  | 10.50.95.255  |          8192 |       19 | False       | subnet-0905d925dd4d240fb | private-arie-test  |
    | 10.50.96.0  | 10.50.127.255 |          8192 |       19 | False       | subnet-031a7b06bb1fbf991 | private-arie-test  |
    | 10.50.128.0 | 10.50.200.255 |         18688 |          | True        |                          |                    |
    | 10.50.201.0 | 10.50.201.255 |           256 |       24 | False       | subnet-09adedd87bec861e8 | public-arie-test   |
    | 10.50.202.0 | 10.50.202.255 |           256 |       24 | False       | subnet-0fcceff21a973dda2 | public-arie-test   |
    | 10.50.203.0 | 10.50.210.255 |          2048 |          | True        |                          |                    |
    | 10.50.211.0 | 10.50.211.255 |           256 |       24 | False       | subnet-0da43f86bc6f4c42f | database-arie-test |
    | 10.50.212.0 | 10.50.212.255 |           256 |       24 | False       | subnet-0a4c14480eb8189c5 | database-arie-test |
    | 10.50.213.0 | 10.50.255.255 |         11008 |          | True        |                          |                    |
    

Suggest available networks:

For example we pass the --cidr-range 10.0.0.0/12 --suggest-range 14 value, on the first example (10.20.0.0/16 and 10.30.0.0/16 are reserved).

the result will be:

| Lowest IP   | Upper IP      |   Num of Addr |   Prefix | Available   | ID   | Name   |
|-------------|---------------|---------------|----------|-------------|------|--------|
| 10.0.0.0    | 10.3.255.255  |        262144 |       14 | True        |      |        |
| 10.4.0.0    | 10.7.255.255  |        262144 |       14 | True        |      |        |
| 10.8.0.0    | 10.11.255.255 |        262144 |       14 | True        |      |        |
| 10.12.0.0   | 10.15.255.255 |        262144 |       14 | True        |      |        |

Or if adding --cidr-range 10.0.0.0/10 --num-of-addr 100000 (we need all available network that have at least hundred thousand addresses), the result will be :

| Lowest IP   | Upper IP      |   Num of Addr |   Prefix | Available   | ID   | Name   |
|-------------|---------------|---------------|----------|-------------|------|--------|
| 10.0.0.0    | 10.15.255.255 |       1048576 |       12 | True        |      |        |
| 10.16.0.0   | 10.19.255.255 |        262144 |       14 | True        |      |        |
| 10.22.0.0   | 10.23.255.255 |        131072 |       15 | True        |      |        |
| 10.24.0.0   | 10.27.255.255 |        262144 |       14 | True        |      |        |
| 10.28.0.0   | 10.29.255.255 |        131072 |       15 | True        |      |        |
| 10.32.0.0   | 10.63.255.255 |       2097152 |       11 | True        |      |        |

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for pyvpc, version 0.1.4
Filename, size File type Python version Upload date Hashes
Filename, size pyvpc-0.1.4-py3-none-any.whl (16.0 kB) File type Wheel Python version py3 Upload date Hashes View hashes
Filename, size pyvpc-0.1.4.tar.gz (12.0 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page