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Old 10-28-2010, 09:24 AM   #1
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Registered: Oct 2010
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QEMU: tap networking issue Host: windows 2003 server, guest: Ubuntu 9.04

host is windows 2003 server 64-bit
guest is ubuntu 9.04 server 64bit

Qemu : 0.11.1
Qemu manager: 7.0

from Qemu manager, if network card is using User Networking, it's a NAT and I can see that Guest Ubuntu has an ip address and is able to access the internet.

However, as Guest ubuntu is running server so I want to do use Tap networking and I assue with Tap, the Guest ubuntu will get an ip address which is in the same subnet as host machine by dhcp.

so from Qemu Manager 7.0, I changed Network card to be:

Vlan Number =0
VLAN Type: Tap Networking
Mac address: tap0's mac address from host
TAP Network Adpator: Tap0

Note that tap0 was created by openvpn.

and then fired Ubuntu guest, ifconfig shows
no ip address on eth0 (which has the same mac address as Tap0)

so the guest Ubuntu has no ip address and can't access public.

my question is: How to make it working?
Old 10-28-2010, 09:26 AM   #2
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Registered: Oct 2010
Posts: 2

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any guide for Host=Windows and Guest =Linux?

from the qemu manager, the command is:

"C:\Program Files (x86)\QemuManager\qemu\qemu-system-x86_64.exe" -L "C:\Program Files (x86)\QemuManager\qemu" -M "pc" -m 512 -cpu "qemu64" -vga cirrus -serial vc -parallel vc -name "Ubuntu64" -drive "file=E:\share\QemuImage\Ubuntu64.qcow2,index=0,media=disk" -drive "file=E:\share\sw\ubuntu-9.04-server-amd64.iso,index=2,media=cdrom" -boot order=cd,menu=off -enable-kqemu -net nic,vlan=0,macaddr=52-54-00-93-02-11,model=ne2k_pci -net "tap,vlan=0,ifname=tap0" -localtime

Last edited by ccc123; 10-28-2010 at 09:45 AM.


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