Your message dated Wed, 7 Jan 2026 23:36:45 +0100 with message-id <rhktm4ixlsdj5kqogd5twboucodasnozs77bckhrmdjaqibdo3@zezqn7pzpbhf> and subject line Re: libvirt-daemon: Error creating virtual network - iptables (nf_tables) table `nat' is incompatible, use 'nft' has caused the Debian Bug report #994127, regarding libvirt-daemon: Error creating virtual network - iptables (nf_tables) table `nat' is incompatible, use 'nft' to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 994127: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=994127 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: libvirt-daemon Version: 7.0.0-3 Severity: graves Dear Maintainer, while trying to create a new virtual network on a fresh Debian 11 install I get the following error: ---- Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/createnet.py", line 428, in _async_net_create netobj.create() File "/usr/lib/python3/dist-packages/libvirt.py", line 3436, in create raise libvirtError('virNetworkCreate() failed') libvirt.libvirtError: internal error: Failed to apply firewall rules /usr/sbin/iptables -w --table nat --list-rules: iptables v1.8.7 (nf_tables): table `nat' is incompatible, use 'nft' tool. ---- I've installed the following packages: qemu-kvm qemu-system-x86 qemu-utils libvirt-daemon-system virt-manager virt-viewer /usr/sbin/iptables is set in automode to /usr/sbin/iptables-nft via update-alternatives. I've tried to create virtual network with virt-manager. When trying to set the rule on commandline it fails with the same error. If you need more information feel free to ask. Regards, Benedikt -- System Information: Debian Release: 11.0 APT prefers stable-security APT policy: (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-8-amd64 (SMP w/8 CPU threads) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.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 libvirt-daemon depends on: ii libblkid1 2.36.1-8 ii libc6 2.31-13 ii libdevmapper1.02.1 2:1.02.175-2.1 ii libgcc-s1 10.2.1-6 ii libglib2.0-0 2.66.8-1 ii libnetcf1 1:0.2.8-1.1 ii libparted2 3.4-1 ii libpcap0.8 1.10.0-2 ii libpciaccess0 0.16-1 ii libselinux1 3.1-3 ii libudev1 247.3-6 ii libvirt-daemon-driver-qemu 7.0.0-3 ii libvirt0 7.0.0-3 ii libxml2 2.9.10+dfsg-6.7 Versions of packages libvirt-daemon recommends: ii libvirt-daemon-driver-lxc 7.0.0-3 ii libvirt-daemon-driver-vbox 7.0.0-3 ii libvirt-daemon-driver-xen 7.0.0-3 ii libxml2-utils 2.9.10+dfsg-6.7 ii netcat-openbsd 1.217-3 ii qemu-system-x86 [qemu-kvm] 1:5.2+dfsg-11 Versions of packages libvirt-daemon suggests: pn libvirt-daemon-driver-storage-gluster <none> pn libvirt-daemon-driver-storage-iscsi-direct <none> pn libvirt-daemon-driver-storage-rbd <none> pn libvirt-daemon-driver-storage-zfs <none> ii libvirt-daemon-system 7.0.0-3 pn numad <none> -- no debconf information
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--- Begin Message ---On Sun, Oct 20, 2024 at 11:58:06AM +0200, Andrea Bolognani wrote: > On Sun, Sep 12, 2021 at 01:40:58PM +0200, Benedikt Tuchen wrote: > > Package: libvirt-daemon > > Version: 7.0.0-3 > > Severity: graves > > > > Dear Maintainer, > > > > while trying to create a new virtual network on a fresh Debian 11 install I > > get > > the following error: > > > > ---- > > Traceback (most recent call last): > > File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in > > cb_wrapper > > callback(asyncjob, *args, **kwargs) > > File "/usr/share/virt-manager/virtManager/createnet.py", line 428, in > > _async_net_create > > netobj.create() > > File "/usr/lib/python3/dist-packages/libvirt.py", line 3436, in create > > raise libvirtError('virNetworkCreate() failed') > > libvirt.libvirtError: internal error: Failed to apply firewall rules > > /usr/sbin/iptables -w --table nat --list-rules: iptables v1.8.7 > > (nf_tables): table `nat' is incompatible, use 'nft' tool. > > ---- > > > > I've installed the following packages: > > qemu-kvm qemu-system-x86 qemu-utils libvirt-daemon-system virt-manager > > virt-viewer > > > > /usr/sbin/iptables is set in automode to /usr/sbin/iptables-nft via > > update-alternatives. > > > > I've tried to create virtual network with virt-manager. > > > > When trying to set the rule on commandline it fails with the same error. > > > > If you need more information feel free to ask. > > Hi Benedikt, > > can you still reproduce this on Debian 12? > > My impression is that it was not really an issue with libvirt in the > first place, but possibly some incompatibility with the iptables > userspace with the nft kernel module or something along those lines, > which I expect would have been addressed by now. > > Thanks in advance for checking. No replies in over a year, with Debian 13 having been released in the meantime. I'm fairly certain this is no longer a problem - if it ever was a libvirt issue in the first place. Closing this now. -- Andrea Bolognani <[email protected]> Resistance is futile, you will be garbage collected.
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