[Qemu-devel] Bug of Qemu when running TAP device on Windows?

[Qemu-devel] Bug of Qemu when running TAP device on Windows?

[Tieu Ma Dau]

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      Hi all,
 I ran successfully Qemu to simulate ARM system on Linux host with the following command:
 ./qemu-system-arm -kernel zImage.integratorCP -append "root=/dev/nfs nfsroot=192.168.7.1:/mnt/nfsqemu rw ip=192.168.7.2::192.168.7.1:255.255.255.0 " -net nic,vlan=0 -net tap,vlan=0,ifname=tap0,script=./qemu-ifup
 The content of qemu-ifup script is: 
 ifconfig tap0 192.168.7.1
 
 But my project demands me to run this ARM system on Windows host. So I modify a bit the qemu-ifup script as:
 ipconfig tap0 192.168.7.1 # "ipconfig" , not "ifconfig"
 And the corresponding command on Windows is:
 qemu-system-arm -kernel zImage.integrator -append "root=/dev/nfs nfsroot=192.
 168.7.1:/c/cygwin/openpsionfiltered=192.168.7.2::192.168.7.1:255.255.255.0" -net
 nic,vlan=0 -net tap,vlan=0,ifname=tap0,script=./qemu-ifup
 
 But the error I got is:
 tap: Could not open 'tap0'
 Could not initialize device 'tap
 
 I found that the problem arrives when creating TAP interface on Windos. Do you have any ideas?
 Best   regards,
 Tieu
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Re: [Qemu-devel] Bug of Qemu when running TAP device on Windows?

[Paul Sokolovsky]

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