eth0 默认被 Vagrant 用于 NAT(VirtualBox NAT 网络模式)，它允许你 vagrant ssh 到框中(端口转发规则 - 主机 2222 来宾 22).

eth0 is by default used by Vagrant for NAT (VirtualBox NAT networking mode), which allow you to vagrant ssh into the box (port forwarding rules - host 2222 <=> guest 22).

这就是为什么即使 Vagrantfile 中只有 1 个 config.vm.network 你有 2 个 NIC.

That's why you have 2 NICs even though you have only 1 config.vm.network in Vagrantfile.

我不认为它可以被禁用，但我不是 100% 确定，您可能需要查看 vagrant 源代码以进一步挖掘.

I don't think it can be disabled, BUT I am not 100% sure, you may want to look into vagrant source code to dig further.