QEMU netstat -ian is missing multicast addresses for ethernet devices
Date: Mon, 02 Feb 2026 19:08:51 UTC
Hello!
I noticed a strange situation on 2 different FreeBSD machines, both are
on qemu (one on a hoster, the other on my own Linux system).
For vtnet, em and le, I noticed that when an IPv6 address is assigned,
netstat -ain does not display the related multicast addresses (e.g. the
mandatory all-nodes or solicited node addresses). Although it displays
the multicast addresses for lo0.
On a virtualbox machine, those multicast addresses are displayed properly.
Can anyone confirm this and let me know where the issue is?
I assume it is listening on those addresses, as NDP is working.
[m@host ~]$ netstat -ain
Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll
vtnet0 1500 <Link#1> 52:xyz 2117994619 0 0 1488531816 0 0
vtnet0 - 7xyz/24 7xyz 1457062414 - - 1748874037 - -
vtnet0 - fe80::%vtnet0/64 fe80::xyz%vtnet0 28527 - - 77718 - -
vtnet0 - 2xyz::/64 2xyz9 619818192 - - 387236589 - -
lo0 16384 <Link#2> lo0 2544743 0 0 2544743 0 0
lo0 - ::1/128 ::1 1154156 - - 1310680 - -
ff01::1%lo0
ff02::2:xyz
ff02::2:xyz
ff02::1%lo0
ff02::1:ff00:1%lo
lo0 - fe80::%lo0/64 fe80::1%lo0 0 - - 0 - -
ff01::1%lo0
ff02::2:xyz
ff02::2:xyz
ff02::1%lo0
ff02::1:ff00:1%lo
lo0 - 127.0.0.0/8 127.0.0.1 8 - - 1390587 - -
224.0.0.1
[m@host ~]$
--
kind regards
Marco
Send unsolicited bulk mail to 1770058571muell@stinkedores.dorfdsl.de