---
title: "Ports used by Trellix Agent"
slug: "ports-used-by-trellix-agent-1"
updated: 2026-10-26T07:33:44Z
published: 2026-10-26T07:33:44Z
canonical: "docs.trellix.com/ports-used-by-trellix-agent-1"
---

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

# Ports used by Trellix Agent

Trellix Agent uses specific ports to connect to ePO - On-prem.

| Ports | Protocols | Traffic direction |
| --- | --- | --- |
| 8081 | TCP | Inbound connection from ePO - On-prem or Agent Handler. Peer-to-peer server serves content, Relay connections established. |
| 8082 | UDP | Inbound connection to Trellix Agent. Peer-to-peer server discovery, RelayServer discovery. |
| 8083 | UDP | RelayServer for previous versions of Trellix Agent. |

If peer-to-peer service and RelayServer are disabled, these ports are not open.

### Note

For information about the ports used by ePO - On-prem for communicating through a firewall, see [KB66797](https://kcm.trellix.com/corporate/index?page=content&id=KB66797).

: