Public bug reported: I am not able to send multicast in the 5.4.0-39 kernel. It appears that this was previously triaged in 2018 but a comment in that same bug report indicates that it could not be compiled for 5.x kernel
The previous bug/patch can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1779173 *-network:1 description: Ethernet interface physical id: 3 bus info: usb@4:1.1 logical name: enx9cebe852a8b8 serial: 9c:eb:e8:52:a8:b8 capabilities: ethernet physical configuration: broadcast=yes driver=cdc_ncm driverversion=22-Aug-2005 firmware=CDC NCM link=no multicast=yes ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-39-generic 5.4.0-39.43 ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41 Uname: Linux 5.4.0-39-generic x86_64 NonfreeKernelModules: compat nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Wed Jul 1 09:33:54 2020 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20180608-47+whitehaven-mlk+X77 InstallationDate: Installed on 2019-10-20 (255 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38 MachineType: Dell Inc. Precision 7540 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-39-generic root=UUID=951a5400-1917-41ec-b8b4-015449beb37a ro mem_sleep_default=deep amdgpu.runpm=0 quiet splash usbcore.autosuspend=-1 nvidia.modset=1 nvidia-drm.modset=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-39-generic N/A linux-backports-modules-5.4.0-39-generic N/A linux-firmware 1.187.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/07/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.7.0 dmi.board.name: 0499T7 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.7.0:bd01/07/2020:svnDellInc.:pnPrecision7540:pvr:rvnDellInc.:rn0499T7:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 7540 dmi.product.sku: 0926 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1885925 Title: Unable to use Multicast with CDC_NCM driver Status in linux package in Ubuntu: New Bug description: I am not able to send multicast in the 5.4.0-39 kernel. It appears that this was previously triaged in 2018 but a comment in that same bug report indicates that it could not be compiled for 5.x kernel The previous bug/patch can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1779173 *-network:1 description: Ethernet interface physical id: 3 bus info: usb@4:1.1 logical name: enx9cebe852a8b8 serial: 9c:eb:e8:52:a8:b8 capabilities: ethernet physical configuration: broadcast=yes driver=cdc_ncm driverversion=22-Aug-2005 firmware=CDC NCM link=no multicast=yes ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-39-generic 5.4.0-39.43 ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41 Uname: Linux 5.4.0-39-generic x86_64 NonfreeKernelModules: compat nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Wed Jul 1 09:33:54 2020 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20180608-47+whitehaven-mlk+X77 InstallationDate: Installed on 2019-10-20 (255 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38 MachineType: Dell Inc. Precision 7540 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-39-generic root=UUID=951a5400-1917-41ec-b8b4-015449beb37a ro mem_sleep_default=deep amdgpu.runpm=0 quiet splash usbcore.autosuspend=-1 nvidia.modset=1 nvidia-drm.modset=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-39-generic N/A linux-backports-modules-5.4.0-39-generic N/A linux-firmware 1.187.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/07/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.7.0 dmi.board.name: 0499T7 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.7.0:bd01/07/2020:svnDellInc.:pnPrecision7540:pvr:rvnDellInc.:rn0499T7:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 7540 dmi.product.sku: 0926 dmi.sys.vendor: Dell Inc. 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