---
title: "How to Enable SACK PERM Function for W5500"
url: "https://maker.wiznet.io/forum/15044"
markdown_url: "https://maker.wiznet.io/forum/15044/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "WisJason"
created: "2023-10-20T02:39:03+09:00"
last_activity: "2023-10-25T05:52:59+09:00"
language: "en"
views: 176
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# How to Enable SACK PERM Function for W5500

## Question

Asked by WisJason on 2023-10-20 in Ethernet Chips.

The current scenario requires the activation of this function, and the Datasheet cannot find the relevant configuration

## Replies

### Reply 1 by WisJason, 2023-10-25

No FAE can answer？

---

Source: https://maker.wiznet.io/forum/15044