Network card allocation problem under vmware

Configure network card and randomly assign IP address

I installed the basic server version and used NAT mode

Then, make sure these two are started in the service

When centos was first installed, there was no eth0 network card.

cd /etc/sysconfig/network-scripts

Then ls, you can see that ifcfg-eth0 exists, but it is not activated

vi ifcfg-eth0

You can see it as follows

Press the "insert" key to enter editing mode. Set ONBOOT=yes, then press the "esc" key, ":" key, "w" key, "q" key, ifcfg-eth0 is modified

service network restart

Then ifconfig, you can see that eth0 has been randomly assigned an IP address

Ping baidu.com, you can see that you can connect to the Internet (ctrl+c to exit ping)

At this time, remote tools such as putty and winscp can be connected

Fixed IP address

Virtual machine-->Edit-->Virtual network editor-->vmnet8-->nat settings

In this page, you can see that the gateway IP is "192.168.255.2" (each machine is different)

Close the gateway viewing page and click the "DHCP Settings" button at the bottom of the page

You can view network information, including:

开始IP地址为“192.168.255.128”

结束IP地址为“192.168.255.254”

子网掩码为“255.255.255.0”

Check the status of "VMware Network Adapter VMnet8" in Network and Sharing Center

192.168.255.1 是虚拟路由器为Windows分配的地址

192.168.255.2 是虚拟路由器的网关地址

Then, in centos, enter the command "vi /etc/sysconfig/network-script/ifcfg-eth0" to modify the eth0 information, and press the "insert" key to modify it

Modify information:

ONBOOT=yes

BOOTPROTO=static

Add information:

IPADDR=192.168.255.100（根据网关自行调整）

NETMASK=255.255.255.0

GATEWAY=192.168.255.2

After modification, press the "esc key", ":" key, "w" key, and "q" key

service network restart

If *** is already in use for device eth0 error occurs, add ARPCHECK=no to the ifcfg-eth0 file just now

View the newly configured IP

Can the speed test be connected to the Internet?

Done

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