https://github.com/maelvls/cidrcalc
CLI for calculating the biggest CIDR from a list of IPs
https://github.com/maelvls/cidrcalc
Last synced: 4 months ago
JSON representation
CLI for calculating the biggest CIDR from a list of IPs
- Host: GitHub
- URL: https://github.com/maelvls/cidrcalc
- Owner: maelvls
- License: mit
- Created: 2025-01-17T18:51:45.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2025-01-17T19:12:55.000Z (5 months ago)
- Last Synced: 2025-01-30T11:50:27.069Z (4 months ago)
- Language: Go
- Size: 3.91 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# cidrcalc
CLI for calculating the biggest CIDR from a list of IPs.
Install:
```bash
go install github.com/maelvls/cidrcalc@latest
```
Examples:
```console
$ dig +short clouddocsdev.s3-website-us-west-2.amazonaws.com | grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' | cidrcalc
Largest CIDR block: 52.0.0.0/8
```
Alternatively, use `-hostname` flag to resolve the IPs from a hostname without
having to use `dig`:
```console
$ cidrcalc -hostname clouddocsdev.s3-website-us-west-2.amazonaws.com
Resolved IPs for clouddocsdev.s3-website-us-west-2.amazonaws.com: [52.218.153.66 52.218.252.146 52.92.225.227 52.218.188.3 52.92.206.163 52.92.204.171 52.92.213.51 52.92.209.3]
Largest CIDR block: 52.0.0.0/8
```