# CAN bus interface configuring fails

**URL:** <https://forums.balena.io/t/can-bus-interface-configuring-fails/4647>\
**Category:** Product support\
**Created:** [December 10, 2018, 12:28am UTC](https://forums.balena.io/t/can-bus-interface-configuring-fails/4647 "2018-12-10T00:28:44Z")\
**Posts on this page:** 1\
**Showing post:** 46

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**Author:** ![janne\_kjellman](https://avatars.discourse-cdn.com/v4/letter/j/258eb7/32.png) [@janne\_kjellman](https://forums.balena.io/u/janne_kjellman)\
**Post date:** [December 18, 2018, 12:44pm UTC](https://forums.balena.io/t/can-bus-interface-configuring-fails/4647/46 "2018-12-18T12:44:48Z")

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Hi,

Same hardware with Raspbian runs flawlessly…

I installed iproute2 to one of the Docker sub systems and run the command in Host OS:

root@79940fe:/mnt/data# ./ip link set can0 type can

root@79940fe:/mnt/data# ./ip link set can0 bitspeed 250000

Error: either “dev” is duplicate, or “bitspeed” is a garbage.

root@79940fe:/mnt/data# ./ip link set can0 up

RTNETLINK answers: Invalid argument

root@79940fe:/mnt/data#

So it feels that even with iproute2 the device is not working properly. Even this iproute2 does not support setting speed on device but even UP command does not return reasonable answer from the can0 device?

// Janne

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