---
title: "Bypassing TCP/IP stack on W6100"
url: "https://maker.wiznet.io/forum/13907"
markdown_url: "https://maker.wiznet.io/forum/13907/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "wiznet dev"
created: "2020-06-24T13:24:00+09:00"
last_activity: "2020-07-16T05:25:46+09:00"
language: "en"
views: 689
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Bypassing TCP/IP stack on W6100

## Question

Asked by wiznet dev on 2020-06-24 in Ethernet Chips.

Hello,

My host controller has LWIP stack and manages internet connectivity over other interfaces too. So, I wanted to bypass the TCP/IP layer on W6100 chip. Is this possible? And if yes, could you point me to resources (links, sample codes, etc) on how to go about this?

## Replies

### Reply 1 by becky, 2020-06-25

W6100 has MACRAW mode and IPRAW mode. Please refer to page 109 and 115 of the datasheet.
<https://wizwiki.net/wiki/lib/exe/fetch.php?media=products:w6100:w6100_ds_v100e.pdf>

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Source: https://maker.wiznet.io/forum/13907