Public bug reported:
The recent change to the netvsc driver in how receive flags are handled
broke multicast. The Hyper-v/Azure virtual interface there is not a
multicast filter list, filtering is only all or none. The driver must
enable all multicast if any multicast address is present.
Submitted upstream to netdev but not yet accepted.
** Affects: linux-azure-edge (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "[PATCH net] hv_netvsc: enable multicast if necessary"
https://bugs.launchpad.net/bugs/1759885/+attachment/5095039/+files/0001-hv_netvsc-enable-multicast-if-necessary.patch
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https://bugs.launchpad.net/bugs/1759885
Title:
[Hyper-V] hv_netvsc: enable multicast if necessary
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