---
title: "MAC address for W7500 IC"
url: "https://maker.wiznet.io/forum/12668"
markdown_url: "https://maker.wiznet.io/forum/12668/md"
type: "Forum topic"
category: "MCU & Boards"
author: "Muralidhar"
created: "2018-01-19T10:45:24+09:00"
last_activity: "2018-04-10T20:36:27+09:00"
language: "en"
views: 1052
replies: 5
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# MAC address for W7500 IC

## Question

Asked by Muralidhar on 2018-01-19 in MCU & Boards.

Is W7500 IC come up with Embedded MAC Address. if no, How can we assign MAC address to it. can any one, please provide the info, it would be appreciated ![:confused:](https://emoji.discourse-cdn.com/twitter/confused.png?v=12)![:confused:](https://emoji.discourse-cdn.com/twitter/confused.png?v=12)

## Replies

### Reply 1 by AMWJ, 2018-01-20

You might want to check the setSHAR(shar) macro inside the W7500x_wztoe.h.
Something like this might work:

uint8_t mac_addr = {0x00, 0x01, 0xDC, 0x34, 0x35, 0x35};
setSHAR(mac_addr);

### Reply 2 by Muralidhar, 2018-01-20 (in reply to reply 1)

thank you for your valuable response…![:grinning:](https://emoji.discourse-cdn.com/twitter/grinning.png?v=12)

### Reply 3 by AMWJ, 2018-01-20

You are welcome.
Please, let me know if that worked for you.

### Reply 4 by Muralidhar, 2018-02-28

no sir , its not working…

### Reply 5 by AMWJ, 2018-04-10

Did you check your local router to see if the device is there? You may want to check your DCHP routines too.

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Source: https://maker.wiznet.io/forum/12668