Three network modes of VMware virtual machine

vmware It provides three working modes for our network card , They are bridging mode 、NAT Pattern 、 Host only mode . Different modes bring different Internet effects to virtual machines , Then how should we choose the appropriate network card mode ？
First , We can see windows The network card inside is set there , Installed on vmware after , There will be two more network cards ：VMware Network Adapter VMnet1 and VMware Network Adapter VMnet8, These two network cards are installed vmware Only some , Corresponding to host only mode and NAT Pattern .

meanwhile , stay vmware Of the options bar of “ edit ” Under the “ Virtual Network Editor ” Can be seen in ：VMnet0（ Bridging mode ）、VMnet1（ Host only mode ）、VMnet8（NAT Pattern ）
Actually , What we see now VMnet0 Represents a virtual switch used in bridge mode ;VMnet1 Represents a virtual switch used in host only mode ;VMnet8 It is used for NAT Virtual switch in mode .

stay vmware Virtual network editor of vmnet1 and vmnet8 Information about , that Windows In the system VMware Network Adapter VMnet1 and VMware Network Adapter VMnet8 The information of these two network cards will also change .

Bridging mode （Bridged Pattern ）

Bridging mode ： Virtual machines can communicate with the local , It can also communicate with other real machines in the LAN or virtual machines in the bridge mode . In the bridge mode, the status of virtual machine is the same as that of real machine , All access the Internet through the external router , And in the same network segment as the real machine , If the virtual machine in bridge mode IP The address and the real machine are not in the same network segment , Then the bridge mode cannot access the Internet .
Bridge mode is to use virtual bridge to communicate between host network card and virtual machine network card . Under the function of bridge , It's similar to virtualizing a physical host as a switch , All virtual machines with bridging settings are connected to an interface of this switch , The physical host is also plugged into the switch , So all the network cards under the bridge are in switching mode , Mutual access without interference . In bridge mode , virtual machine ip The address needs to be in the same network segment as the host , If networking is needed , Then the gateway and DNS It needs to be consistent with the host network card .
If there are many machines in your LAN , If you use bridge mode , There may be IP Address conflict , Therefore, there are many machines that need to be networked in the LAN , Bridge mode is not suitable , More suitable for NAT Pattern ; But if you want the machines in the LAN to be interconnected , Then the bridge mode is more suitable .

NAT Pattern

NAT Pattern ： stay NAT In the pattern , Host network card and virtual directly NAT Equipment connection , And then virtual NAT Devices and virtual DHCP The servers are connected together in a virtual switch VMnet8 On , In this way, virtual machine networking is realized . Then we'll find it strange , Why do I need a virtual network card VMware Network Adapter VMnet8 Well ？ It turns out that our VMware Network Adapter VMnet8 The virtual network card is mainly for the communication between the host and the virtual machine . Virtual machines really rely on virtual NAT Devices and virtual DHCP Connect the virtual machine to the Internet .
If you are in the windows It's disabled inside VMware Network Adapter VMnet8 This network card , You will find that you can still surf the Internet in the virtual machine , Sure ping through www.baidu.com, But your real machine and virtual machine can't communicate , It's your xshell Unable to connect to the virtual machine , When you get rid of it VMnet8 Disable this network card , You'll find that xshell It can be connected again
NAT In mode , The machine can access the Internet , But it can't communicate with other machines in the LAN
Use NAT Pattern , There will be delays on the Internet , Because after layers of router forwarding

Host only mode （hostonly Pattern ）

Host only mode （hostonly)： Virtual machines can only communicate with our real machines , It can be understood that they are all in the same network segment , The same vlan, But you can't communicate with machines in other network segments through routers , Only the host mode has no gateway configured .（ If you give it by hand hostonly Virtual machines in mode are equipped with gateways and default routes , Then the virtual machine in the host mode can also be connected to the Internet normally ）
Use host only mode , Will not communicate with other machines , So not IP Address conflict
In host mode only ,xshell Want to connect to the virtual machine , First of all, we need to keep the virtual machine IP Address with VMware Network Adapter VMnet1 Of IP The address is the same gateway , But not the same , such xshell You can connect .xhsell Connecting virtual machines , stay hostonly In mode , Through the machine VMnet1 Interface connected , therefore VMnet1 Want to follow IP The address is in the same gateway

About the specific configuration of each mode , Check out this article ：VMware There are three network modes of virtual machine