Due to the bug in kernel 6.9 caused by https://github.com/torvalds/linux/commit/8debcf5832c3e8a6baaea27c75ad8a6ba5077beb, the net_id udev builtin does not work for netdevsim interface. So, eni99np1 cannot be used with kernel 6.9 anymore. Workaround for #32910.