我是ubuntu的初学者，已经在台式计算机上安装了ubuntu 16.04，然后按照以下步骤安装了Vagrant
sudo apt-get install virtualbox
sudo apt-get install vagrant
vagrant box add ubuntu/xenial64
vagrant init ubuntu/xenial64
vagrant up
vagrant ssh
我可以访问它：
vagrant@ubuntu-xenial:~$ ifconfig
enp0s3 Link encap:Ethernet HWaddr 02:ba:5f:3b:91:b0
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::ba:5fff:fe3b:91b0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:282 errors:0 dropped:0 overruns:0 frame:0
TX packets:201 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:31982 (31.9 KB) TX bytes:30222 (30.2 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
所以我试图将主机ping到10.0.2.15，但是...
admin@admin-desktop:~$ ping 10.0.2.15
PING 10.0.2.15 (10.0.2.15) 56(84) bytes of data.
什么都没发生。
访客的IP路由输出
vagrant@ubuntu-xenial:~$ ip route
default via 10.0.2.2 dev enp0s3
10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15
主机上的IP路由输出
admin@admin-desktop:~$ ip route
default via 172.16.20.1 dev enp3s0 proto static metric 100
169.254.0.0/16 dev enp3s0 scope link metric 1000
172.16.20.0/24 dev enp3s0 proto kernel scope link src 172.16.20.187 metric 100
我尝试将NAT设置为Bridge适配器显示以下错误
admin@admin-desktop:~$ vagrant reload
==> default: Attempting graceful shutdown of VM...
default: Guest communication could not be established! This is usually because
default: SSH is not running, the authentication information was changed,
default: or some other networking issue. Vagrant will force halt, if
default: capable.
==> default: Forcing shutdown of VM...
==> default: Checking if box 'ubuntu/xenial64' is up to date...
==> default: A newer version of the box 'ubuntu/xenial64' is available! You currently
==> default: have version '20191108.0.0'. The latest is version '20191113.0.0'. Run
==> default: `vagrant box update` to update.
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
default: Adapter 1: nat
==> default: Forwarding ports...
default: 22 (guest) => 2222 (host) (adapter 1)
There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.
Command: ["modifyvm", "49520cee-d0ee-43e3-869c-4f78e1fb9dfd", "--natpf1", "ssh,tcp,127.0.0.1,2222,,22"]
Stderr: VBoxManage: error: A NAT rule of this name already exists
VBoxManage: error: Details: code NS_ERROR_INVALID_ARG (0x80070057), component NATEngineWrap, interface INATEngine, callee nsISupports
VBoxManage: error: Context: "AddRedirect(Bstr(strName).raw(), proto, Bstr(strHostIp).raw(), RTStrToUInt16(strHostPort), Bstr(strGuestIp).raw(), RTStrToUInt16(strGuestPort))" at line 1838 of file VBoxManageModifyVM.cpp
enter code here