# ConnectCore mac address

**URL:** <https://forums.digi.com/t/connectcore-mac-address/20234>\
**Category:** Linux\
**Tags:** connectcore6ul\
**Created:** [February 6, 2019, 12:18pm UTC](https://forums.digi.com/t/connectcore-mac-address/20234 "2019-02-06T12:18:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ghermant](https://avatars.discourse-cdn.com/v4/letter/g/ce73a5/32.png) [@ghermant](https://forums.digi.com/u/ghermant)\
**Post date:** [February 6, 2019, 12:18pm UTC](https://forums.digi.com/t/connectcore-mac-address/20234/1 "2019-02-06T12:18:46Z")

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Hi all,  
I was wondering if mac addresses are preflashed on ConnectCore 6UL module or if i needed to flash my own mac address in OTP registers.  
I plan to use 2x Ethernet interface (like the SBC Pro).  
BR,  
greg

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**Author:** ![LeonidM](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@LeonidM](https://forums.digi.com/u/LeonidM)\
**Post date:** [February 7, 2019, 8:17am UTC](https://forums.digi.com/t/connectcore-mac-address/20234/2 "2019-02-07T08:17:29Z")

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MAC addresses are pre-flashed with unique MAC addresses to those indicated on the stickers. You can change them if you need to.