Traceback (most recent call last):
File "./tunnel.py", line 296, in
main()
File "./tunnel.py", line 242, in main
(tun_fd, tun_ifname) = open_tun_interface(options.tun_device_filename)
File "./tunnel.py", line 79, in open_tun_interface
ifs = ioctl(tun, TUNSETIFF, struct.pack("16sH", "gr%d", mode))
IOError: [Errno 1] Operation not permitted
出现了什么错误,求高手指教,不知道怎么办