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* [Bug 1861884] [NEW] qemu socket multicast not working
@ 2020-02-04 15:43 Maarten
  2020-02-04 15:48 ` [Bug 1861884] " Maarten
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Maarten @ 2020-02-04 15:43 UTC (permalink / raw)
  To: qemu-devel

Public bug reported:

Running two qemu vms on the same socket multicast address:

  qemu-system-x86_64 -m 2048 -smp 2 -serial mon:stdio
    -display none -vga none
    -nodefaults -accel hax
    -netdev user,id=mynet0
    -device virtio-net-pci,netdev=mynet0
    -netdev socket,id=vlan,mcast=239.192.0.1:1235
    -device virtio-net-pci,netdev=vlan
    -device virtio-rng-pci
    -drive file=worker.qcow2,if=virtio
    -drive file=cloud-init.iso,format=raw,if=virtio

The two machines have a static ip on the socket network interface,
192.168.100.11 and 192.168.100.12, but are unable to reach each other.

Result when using ping command

  PING 192.168.100.11 (192.168.100.11) 56(84) bytes of data.
  From 192.168.100.12 icmp_seq=1 Destination Host Unreachable
  From 192.168.100.12 icmp_seq=2 Destination Host Unreachable
  From 192.168.100.12 icmp_seq=3 Destination Host Unreachable

Is there additional configuration necessary on macos? Does this only
work on Linux? Is there additional configuration required inside of the
guest OS?

guest OS: Debian 10 (Buster)
host OS: macOS 10.15.2
qemu: 4.2.0

** Affects: qemu
     Importance: Undecided
         Status: New

** Description changed:

  Running two qemu vms on the same socket multicast address:
  
-   qemu-system-x86_64 -m 2048 -smp 2 -serial mon:stdio -display none -vga none
-     -nodefaults -accel hax
-     -netdev user,id=mynet0
-     -device virtio-net-pci,netdev=mynet0
-     -netdev socket,id=vlan,mcast=239.192.0.1:1235
-     -device virtio-net-pci,netdev=vlan
-     -device virtio-rng-pci
-     -drive file=worker.qcow2,if=virtio
-     -drive file=cloud-init.iso,format=raw,if=virtio
+   qemu-system-x86_64 -m 2048 -smp 2 -serial mon:stdio
+     -display none -vga none
+     -nodefaults -accel hax
+     -netdev user,id=mynet0
+     -device virtio-net-pci,netdev=mynet0
+     -netdev socket,id=vlan,mcast=239.192.0.1:1235
+     -device virtio-net-pci,netdev=vlan
+     -device virtio-rng-pci
+     -drive file=worker.qcow2,if=virtio
+     -drive file=cloud-init.iso,format=raw,if=virtio
  
  The two machines have a static ip on the socket network interface,
  192.168.100.11 and 192.168.100.12, but are unable to reach each other.
  
  Is there additional configuration necessary on macos? Does this only
  work on Linux?
  
  guest OS: Debian 10 (Buster)
  host OS: macOS 10.15.2
  qemu: 4.2.0

-- 
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1861884

Title:
  qemu socket multicast not working

Status in QEMU:
  New

Bug description:
  Running two qemu vms on the same socket multicast address:

    qemu-system-x86_64 -m 2048 -smp 2 -serial mon:stdio
      -display none -vga none
      -nodefaults -accel hax
      -netdev user,id=mynet0
      -device virtio-net-pci,netdev=mynet0
      -netdev socket,id=vlan,mcast=239.192.0.1:1235
      -device virtio-net-pci,netdev=vlan
      -device virtio-rng-pci
      -drive file=worker.qcow2,if=virtio
      -drive file=cloud-init.iso,format=raw,if=virtio

  The two machines have a static ip on the socket network interface,
  192.168.100.11 and 192.168.100.12, but are unable to reach each other.

  Result when using ping command

    PING 192.168.100.11 (192.168.100.11) 56(84) bytes of data.
    From 192.168.100.12 icmp_seq=1 Destination Host Unreachable
    From 192.168.100.12 icmp_seq=2 Destination Host Unreachable
    From 192.168.100.12 icmp_seq=3 Destination Host Unreachable

  Is there additional configuration necessary on macos? Does this only
  work on Linux? Is there additional configuration required inside of
  the guest OS?

  guest OS: Debian 10 (Buster)
  host OS: macOS 10.15.2
  qemu: 4.2.0

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1861884/+subscriptions


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-07-05  4:27 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-04 15:43 [Bug 1861884] [NEW] qemu socket multicast not working Maarten
2020-02-04 15:48 ` [Bug 1861884] " Maarten
2021-05-05 15:21 ` Thomas Huth
2021-07-05  4:17 ` Launchpad Bug Tracker

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