---
title: "Setting UDP data length"
url: "https://maker.wiznet.io/forum/11508"
markdown_url: "https://maker.wiznet.io/forum/11508/md"
type: "Forum topic"
category: "IO Modules"
author: "JulesMhz"
created: "2015-12-08T08:48:43+09:00"
last_activity: "2017-05-04T08:37:42+09:00"
language: "en"
views: 707
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Setting UDP data length

## Question

Asked by JulesMhz on 2015-12-08 in IO Modules.

Hi team !

I use a WIZ820io module together with Teensy 3.2 module.

I’m able to send UDP packet, but I have a specific need, I would like to send an UDP packet with a bad packet length information. In other words, when I send 4bytes UDP data, I would like the UDP data length header said 3bytes.

Is this possible ?

Thank you for your help.

Best regards.
Julien.

---

Source: https://maker.wiznet.io/forum/11508