[libvirt-users] Can't NAT in KVM

[vipul borikar]

Can you just disable the firewall and see whether it works or not .

On Fri, Jul 27, 2012 at 10:26 PM, Borden Rhodes <jrvp at bordenrhodes.com>wrote:

> Thank you for the tips. There was nothing of interest in the libvirt
> logs and dnsmasq seems to be installed correctly, but perhaps this
> configuration information will help:
>
> LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
> HOME=/root USER=root LOGNAME=root QEMU_AUDIO_DRV=spice /usr/bin/kvm -S
> -M pc-0.15 -cpu
>
> core2duo,+lahf_lm,+osxsave,+xsave,+sse4.1,+pdcm,+xtpr,+cx16,+tm2,+est,+vmx,+ds_cpl,+dtes64,+pbe,+tm,+ht,+ss,+acpi,+ds
> -enable-kvm -m 2048 -smp 2,sockets=2,cores=1,threads=1 -name
> KubuntuLiveCD -uuid bfe78349-5409-d439-3ba5-545ada8727bc -nodefconfig
> -nodefaults -chardev
>
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/BootDiskTest.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
> -no-reboot -no-shutdown -device
> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device
> virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive
>
> file=/home/borden/kubuntu-12.04-desktop-i386.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw
> -device
> ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=1
> -netdev tap,fd=20,id=hostnet0 -device
>
> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:e3:80:11,bus=pci.0,addr=0x3
> -chardev pty,id=charserial0 -device
> isa-serial,chardev=charserial0,id=serial0 -chardev
> spicevmc,id=charchannel0,name=vdagent -device
>
> virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0
> -spice port=5900,addr=127.0.0.1,disable-ticketing -vga qxl -global
> qxl-vga.vram_size=67108864 -device
> intel-hda,id=sound0,bus=pci.0,addr=0x4 -device
> hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
>
> It turns out when I was poking through dmesg that I discovered that
> Firestarter was, indeed, blocking the virtual machines from getting an
> IP address. Which ports/services do I have to open in the firewall to
> let DHCP do its work? I can't find anything in the documentation which
> says that firewalls can cause problems. Perhaps someone should mention
> that?
>
> The problem isn't quite solved yet. Although the virtual machines can
> an IP address, they cannot connect to the Internet. The connections
> time out when I try to connect out. Suggestions?
>
> With thanks,
>
> Borden
>
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>



-- 
Thanks

Vipul Borikar
"Our task must be to free ourselves...by widening our circle of compassion
to embrace all living creatures and the whole of nature and its beauty."
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