Same problem with 2.6.18-4-k7. fisher@ws:~$ uname -a Linux ws 2.6.18-4-k7 #1 SMP Wed Feb 21 16:48:19 UTC 2007 i686 GNU/Linux Just found this bug through google by keywords "strace qemu ioctl TUNSETIFF EPERM" -- Best wishes, ~ Serge. pubkeys: http://uch.net/~fisher/keys.asc ~fingerprint : 4346 2766 BC96 E77F 5BFF 1E7C 12C2 3852 E5FD DC34