Public bug reported: ---Problem Description--- qeth on a DPM-managed IBM Z machine does not obtain its MAC Address for L2 OSD interfaces from the OSA Network Adapter. Instead it uses a random MAC Address.
This causes connectivity issues in setups where a reliable & pre-determined MAC Address is required - ie. when doing network configuration via DHCP. ---uname output--- Ubuntu 18.04 / vmlinuz-4.15.0-101-generic Machine Type = IBM z14 GA2 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- - Bring up a qeth L2 OSD interface in DPM-managed LPAR. - Inspect the interface's MAC Address. It should be the same as displayed in the DPM Panels. Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. -Attach sysctl -a output output to the bug. Backport of "s390/qeth: improve fallback to random MAC address" Backport of "s390/qeth: utilize virtual MAC for Layer2 OSD devices" This ticket is for 18.04 only. Already available with 20.04 ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Skipper Bug Screeners (skipper-screen-team) Status: New ** Tags: architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 ** Tags added: architecture-s39064 bugnameltc-185982 severity-high targetmilestone-inin18044 ** Changed in: ubuntu Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team) ** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880834 Title: qeth: utilize virtual MAC for Layer2 OSD devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880834/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs