---
title: "7100a arp group flag"
url: "https://maker.wiznet.io/forum/10245"
markdown_url: "https://maker.wiznet.io/forum/10245/md"
type: "Forum topic"
category: "MCU & Boards"
author: "JAMESLCOOPER"
created: "2014-05-19T21:36:11+09:00"
last_activity: "2017-05-04T08:32:56+09:00"
language: "en"
views: 745
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# 7100a arp group flag

## Question

Asked by JAMESLCOOPER on 2014-05-19 in MCU & Boards.

We have been using the 7100A, and the 3100 before it, in many products we manufacture. One of our OEM customers is complaining that “ARP replies have the Group address flag set.” This is their exact wording. This is causing an APP they are writing from woking with iPhones.

After reading through the 7100A data sheet, I can find nothing that refers to this. Is there some way of resetting this flag?

Thank you in advance.

Jim Cooper
JLCooper Electronics

---

Source: https://maker.wiznet.io/forum/10245