# MAC Address from ARM system

**URL:** <https://forum.inductiveautomation.com/t/mac-address-from-arm-system/24343>\
**Category:** Ignition\
**Created:** [April 23, 2019, 11:50pm UTC](https://forum.inductiveautomation.com/t/mac-address-from-arm-system/24343 "2019-04-23T23:50:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![keithw](https://avatars.discourse-cdn.com/v4/letter/k/278dde/32.png) [@keithw](https://forum.inductiveautomation.com/u/keithw)\
**Post date:** [April 23, 2019, 11:50pm UTC](https://forum.inductiveautomation.com/t/mac-address-from-arm-system/24343/1 "2019-04-23T23:50:21Z")

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I’m running a vision client on a raspberry pi, unfortunately the MAC address tag ([System]Client/Network/MACAddress) is being read as “none”.

Is this not possible to read? Thanks.

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 24, 2019, 10:20am UTC](https://forum.inductiveautomation.com/t/mac-address-from-arm-system/24343/2 "2019-04-24T10:20:14Z")

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Sounds like a bug. Try putting the following in a client startup script:

```auto
from java.net import NetworkInterface

for ni in NetworkInterace.getNetworkInterfaces():
    print "%2d %s = %s" % (ni.index, ni.name, ":".join(["%02x" % b for b in ni.hardwareAddress]))

```

Details [here](https://docs.oracle.com/javase/8/docs/api/java/net/NetworkInterface.html).