---
title: "Prepare your network"
slug: "prepare-your-network-2"
tags: ["DLP 11.10.x", "DLPD 11.10.x", "Install and Get Started"]
updated: 2026-11-05T14:30:37Z
published: 2026-11-05T14:30:37Z
canonical: "docs.trellix.com/prepare-your-network-2"
---

> ## 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.

# Prepare your network

Before installing Trellix DLP Discover software, you must configure the network, define administrators, and deploy the needed software.

1. Configure any intermediary firewalls or policy-enforcing devices to allow the specified ports for network communication.

All listed protocols use TCP only, unless noted otherwise. For information about ports that communicate with ePO - On-prem , see article [000006527](https://thrive.trellix.com/s/article/KB66797).

**Trellix DLP Discover default ports**

| Port, protocol | Use |
| --- | --- |
| - 137, 138, 139 — NetBIOS - 445 — SMB | CIFS scans |
| - 80 — HTTP - 443 — SSL | Box and SharePoint scans SharePoint servers might be configured to use non-standard HTTP or SSL ports. If needed, configure firewalls to allow the non-standard ports. |
| 53 — DNS (UDP) | DNS queries |
| - 1801 — TCP - 135, 2101*, 2103*, 2105 — RPC - 1801, 3527 — UDP * Indicates that the port numbers might be incremented by 11 depending on the available ports at initialization. For more information, see Microsoft KB article [178517](https://support.microsoft.com/en-us/kb/178517#/en-us/kb/178517). > [!NOTE] > Note > > MSMQ uses these ports only for internal communication. Nothing needs to be opened on the network firewall, but the local or host firewall needs to allow these communications. | Microsoft Message Queuing (MSMQ) |
| 1433 | Microsoft SQL |
| 1521 | Oracle |
| 3306 | MySQL |
| 50000 | DB2 |
2. Create users and groups for administrative assignments.
3. Deploy Trellix Agent to the servers.
4. Install Microsoft Internet Information Services (IIS) on the DLP Servers.