---
title: "Services"
slug: "services-objects"
updated: 2026-04-07T09:08:36Z
published: 2026-04-07T09:08:36Z
canonical: "support.perimeter81.com/services-objects"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.perimeter81.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Services

## Introduction ##
**Services** are used to define the applications which you want to allow access to. 
They are defined at Layer 4 of the OSI model with protocol and port combinations:
(ex. protocol TCP port 80 or protocol UDP port 53)

## Steps ##
Navigate to **Objects -> Services** and click on the **Add Service** button:

![image.png](https://cdn.document360.io/44667c0c-50d7-412a-acbd-20d4a41c952e/Images/Documentation/image%2892%29.png){height="" width=""}

**Services** can vary from three different Internet Protocols, TCP, UDP and ICMP. You can 
define a single port, a port range or a port list.

Here are a few examples of services that can be defined:

![image.png](https://cdn.document360.io/44667c0c-50d7-412a-acbd-20d4a41c952e/Images/Documentation/image%2893%29.png){height="" width=""}

You can also combine multiple protocol/port pairs into a single service:

![image.png](https://cdn.document360.io/44667c0c-50d7-412a-acbd-20d4a41c952e/Images/Documentation/image%2895%29.png){height="" width=""}

## Related Articles ##

## Troubleshooting ##

## Support Contacts ##
If you have any difficulties or questions, don't hesitate to contact <span contenteditable="false" translate="no" data-variable="company-name" class="fr-deletable" id="blockvariable">{{variable.company-name}}</span>'s support team. We offer 24/7 chat support on our website at sase.checkpoint.com, or you can email us at sase-support@checkpoint.com. We're here to assist you and ensure your VPN tunnel setup is a success.