Control: reassign -1 iptables Control: forcemerge 1128561 -1 Hi,
On Sun, Feb 22, 2026 at 12:43:53PM +0000, zipdox wrote: > Package: libvirt-daemonVersion: 12.0.0-1 > Severity: grave > > I'm not sure I know exactly what's going on here. I marked this bug as grave > at it makes KVM completely unusable unless you don't use networking. I > believe Debian unstable moved from iptables to nftables a while ago, which > broke libvirt networking. I've been getting around that by using an older > kernel (6.17.x, don't remember exactly which one) but that stopped working > after I upgraded yesterday. > > I get the following error when I try to start the default (NAT) network: > $ sudo virsh net-start default > error: Failed to start network default > error: internal error: Failed to run firewall command iptables -w --table > filter --list-rules: > > Running that command manually I get: > $ sudo iptables -w --table filter --list-rules > modprobe: FATAL: Module ip_tables not found in directory > /lib/modules/6.18.12+deb14-rt-amd64 > iptables v1.8.12 (legacy): can't initialize iptables table `filter': Table > does not exist (do you need to insmod?) > Perhaps iptables or your kernel needs to be upgraded. > > Again, I'm not sure exactly what's going on here. It's possible this issue > was already reported, but I couldn't find it. This looks the same as #1128561. Regards, Salvatore
