[Expired for QEMU because there has been no activity for 60 days.] ** Changed in: qemu Status: Incomplete => Expired
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1642421 Title: qemu-system-x86_64: ipv6 and dns is broken with netdev user Status in QEMU: Expired Bug description: Hi, dhcp inside qemu returns an ipv6 address as dns-server. However this is not working. If i replace it with the ipv4 address '10.0.0.2' dns is working again. I would expect that the qemu emulated dhcp server responds either an ipv4 configuration that is working or its dns server/forwarder listens on the ipv6 address returned by the emulated dhcp server. I used latest qemu from git ( b0bcc86d2a87456f5a276f941dc775b265b309cf) and used the following commands: $ ./qemu-system-x86_64 -enable-kvm -M pc -device virtio-rng-pci -device virtio-net-pci,netdev=user.0 -drive file=buildenv.img,if=virtio,bus=1,unit=0 -no-reboot -netdev user,id=user.0,hostfwd=tcp::5022-:22,hostfwd=tcp::7587-:7588 -m 1024 -usb -nographic -smp 4 buildenv.img is a debian jessie amd64 installation. Inside qemu the network is configured to use dhcp: $ cat /etc/network/interfaces allow-hotplug eth0 iface eth0 inet dhcp $ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 52:54:00:12:34:56 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fe12:3456/64 Scope:Link inet6 addr: fec0::5054:ff:fe12:3456/64 Scope:Site UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10 errors:0 dropped:0 overruns:0 frame:0 TX packets:28 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3215 (3.1 KiB) TX bytes:3638 (3.5 KiB) $ cat /etc/resolv.conf nameserver fec0::3 $ arp google.de google.de: Host name lookup failure $ strace -f arp google.de ... socket(PF_INET6, SOCK_DGRAM|SOCK_NONBLOCK, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET6, sin6_port=htons(53), inet_pton(AF_INET6, "fec0::3", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "\17\320\1\0\0\1\0\0\0\0\0\0\6google\2de\0\0\1\0\1", 27, MSG_NOSIGNAL, NULL, 0) = 27 poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout) poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "\17\320\1\0\0\1\0\0\0\0\0\0\6google\2de\0\0\1\0\1", 27, MSG_NOSIGNAL, NULL, 0) = 27 poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout) close(4) = 0 ... $ echo nameserver 10.0.0.2 > /etc/resolv.conf $ arp google.de google.de (216.58.208.35) -- no entry Note: I reported this bug also to debian: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=844566 Regards, Manuel To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1642421/+subscriptions