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)
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https://bugs.launchpad.net/bugs/1880834
Title:
qeth: utilize virtual MAC for Layer2 OSD devices
Status in linux package in Ubuntu:
New
Bug description:
---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
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880834/+subscriptions
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