Package: gnome-boxes Version: 3.38.0-1 Followup-For: Bug #966510 Dear Maintainer,
I have dicovered that the issue was not caused by VLAN, but by the DNS configuration of the host LAN. The first DNS resolver was configured to refuse most DNS request. The host used the secondary DNS resolver provided, but QEMU in "user mode" networking uses only the first nameserver provided. This is a known behavior, which was declared as "Won't fix" for QEMU in the past. See message #28 for bug #625689 for details why: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=625689#28 I do not see how Boxes could workaround that without tradeoffs. So, I believe that this bug report is invalid and should be closed. Sorry for false alarm. Best wishes Roman -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 5.8.0-3-amd64 (SMP w/6 CPU threads) Locale: LANG=uk_UA.UTF-8, LC_CTYPE=uk_UA.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages gnome-boxes depends on: ii dconf-gsettings-backend [gsettings-backend] 0.38.0-1 ii genisoimage 9:1.1.11-3.1 ii libarchive13 3.4.3-2 ii libc6 2.31-3 ii libcairo2 1.16.0-4 ii libfreerdp2-2 2.2.0+dfsg1-1 ii libgdk-pixbuf2.0-0 2.40.0+dfsg-5 ii libglib2.0-0 2.66.1-1 ii libgtk-3-0 3.24.23-2 ii libgtk-vnc-2.0-0 1.0.0-1 ii libgtksourceview-4-0 4.8.0-1 ii libgudev-1.0-0 234-1 ii libhandy-0.0-0 0.0.13-2 ii libosinfo-1.0-0 1.7.1-1 ii libosinfo-bin 1.7.1-1 ii libpango-1.0-0 1.46.2-1 ii libsecret-1-0 0.20.3-1 ii libsoup2.4-1 2.72.0-2 ii libspice-client-glib-2.0-8 0.38-2 ii libspice-client-gtk-3.0-5 0.38-2 ii libtracker-sparql-2.0-0 2.3.6-2 ii libusb-1.0-0 2:1.0.23-2 ii libvirt-daemon 6.6.0-2 ii libvirt-glib-1.0-0 3.0.0-1 ii libvte-2.91-0 0.62.0-3 ii libwebkit2gtk-4.0-37 2.30.1-1 ii libwinpr2-2 2.2.0+dfsg1-1 ii libxml2 2.9.10+dfsg-6 ii tracker 2.3.6-2 Versions of packages gnome-boxes recommends: ii qemu-system-x86 1:5.1+dfsg-4 gnome-boxes suggests no packages. -- no debconf information