# Subnetting

**Example URL:** <http://localhost:7897/e/{engagement.id}/subnets>

Pro Tier’s subnetting system allows the penetration tester or team to breakdown a large engagement, maintain scope, and focus on individual segments of a target network.

![Pro Tier's Subnetting System](https://1013683115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHecEAvxd6Z8cSug6DhWr%2Fuploads%2FZahz4GoKST8ARMRSgCpc%2Fimage.png?alt=media\&token=305eca56-6c3e-42f8-bccd-884e4cbb84ce)

## Subnet Filtering

Use the Filter column ![](https://1013683115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHecEAvxd6Z8cSug6DhWr%2Fuploads%2FrL1PUJBjh9EjccvGgW9U%2Fimage.png?alt=media\&token=1959c098-1c34-4f99-9115-fe9ecaef2991)of the Subnets table to show or hide various subnets you have created. The application's [Sidebar](https://docs.pentest.ws/getting-started/main-window-layout#sidebar), [Boards](https://docs.pentest.ws/views-and-filtering/boards), and [Matrix](https://docs.pentest.ws/views-and-filtering/the-matrix) views will reflect the IP subnets you selected. Use the ![](https://1013683115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHecEAvxd6Z8cSug6DhWr%2Fuploads%2FjU7o5YehWnSbqHHGffFz%2Fimage.png?alt=media\&token=885317d6-8da9-4f98-b054-a61139c00a71) links at the bottom of the table to enable or disable all subnets.

## IP List Shortcuts

![IP Shortcuts](https://1013683115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHecEAvxd6Z8cSug6DhWr%2Fuploads%2F4CTVkIth22iQcJPiLYzZ%2Fimage.png?alt=media\&token=ae22ade6-1954-4354-ae75-031fd4c583c6)

The Subnets screen provides a convenient list of filtered IP addresses to run additional tools against a subnet, such as nmap or EyeWitness to quickly scan large blocks of IP addresses.

## Subnet Scans

These subnets can be used in scan templates.

![Using Subnets in Scan Templates](https://1013683115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FHecEAvxd6Z8cSug6DhWr%2Fuploads%2Fb835OtLrI1rpDAmN6tfu%2Fimage.png?alt=media\&token=dc27922a-4d53-4e38-b308-a024e2c9f88e)

## Tier Availability

**Subnets** are available on **Pro Tier**.