http://bugzilla.novell.com/show_bug.cgi?id=581966 http://bugzilla.novell.com/show_bug.cgi?id=581966#c0 Summary: NAT does not work with HVM guests Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: x86-64 OS/Version: openSUSE 11.2 Status: NEW Severity: Major Priority: P5 - None Component: Xen AssignedTo: jdouglas@novell.com ReportedBy: erik@brakkee.org QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=343904) --> (http://bugzilla.novell.com/attachment.cgi?id=343904) log file when the domU is started. User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.6) Gecko/20091210 SUSE/2.0.1-1.1.1 SeaMonkey/2.0.1 When a HVM guest is created with NAT networking, the tap device required for HVM network emulation cannot be created by the scripts. As a result, there is no networking support in the domU. The detailed message that is in /var/log/xen/qemu-dm-<domain>.log is as follows: WARNING! wlan1 is not a bridge. qemu-ifup exiting. VM may not have a functioning networking stack. The workaround that is provided on http://www.2virt.com/blog/?p=151 (see point d, "Custom solution for HVM guests") works but is not a full solution. Reproducible: Always Steps to Reproduce: 1. Configure xend-config.sxp to use nat. Specify the netdev in the network-nat configuration to be the external interface (in my case wlan1). 2. setup a HVM domain, specifying type=ioemu for the network card as well as an IP address 10.0.0.1, gateway, and netmask 3. xm new <domain> 4. xm start <domain> 5. From domU: ping -I <if> 10.0.0.2 6, On dom0 verify using ifconfig that only the vif device is created but no tap device 7. verify using tcpdump that the ping from domU does not result in any packets on the vif interface. Actual Results: 1. A log message in the /var/log/xen/qemu-dm-<domain>.log about that the qemu-ifup is exiting (see above). 2. no network traffic is possible. Expected Results: 1. I should have seen a tap interface using ifconfig . 2. tcpdump should have shown packets arriving on the tap interface when pinging from domU. I have given this bug major severity because basic functionality is broken. In particular, most laptop users will be affected as in those cases WIFI is often used for networking and bridge networking in general does not work with WIFI. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.