这篇文章是由Siralop写的

一、环境准备

这篇文章是由Siralop写的

主机配置

网卡 属性 IP
vmnet8 NAT 192.168.50.1
vmnet1 HOST Only none
WWAN DHCP 10.7.126.8

虚拟服务器配置

网卡 属性 IP 与主机连接
ens33 DHCP 192.168.50.128 vmnet8
ens36 static 192.168.20.2 vmnet1

虚拟主机配置

网卡 属性 IP 与主机连接
ens33 DHCP 192.168.50.129 vmnet8
ens36 DHCP 192.168.20.10 vmnet1

1.修改虚拟网卡的设置,关闭原有DHCP服务

这篇文章是由Siralop写的

步骤要点:打开虚拟网络编辑器,将仅主机网络的DHCP服务关闭

二、虚拟服务器需要做的事情

这篇文章是由Siralop写的

1.编辑网卡配置

步骤要点1：将HOST Only网卡设置中的BOOTPROTO的属性值修改为static
步骤要点2：为网卡添加一个IP地址、网关、和子网掩码

步骤命令：sudo vim /etc/sysconfig/network-scripts/ifcfg-ens36

修改完成的ifcfg-ens36文件内容

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HWADDR=00:0C:29:9C:BE:67
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens36
DEVICE=ens36
UUID=a9743b5f-1be0-3ca9-a875-29cb86741dc3
ONBOOT=yes
AUTOCONNECT_PRIORITY=-999
IPADDR=192.168.20.2
NETMASK=255.255.255.0
PREFIX=24
GATEWAY=192.168.20.1

2.安装dhcp软件包

这篇文章是由Siralop写的

步骤命令：sudo yum install dhcp

3、编辑dhcp配置文件

这篇文章是由Siralop写的

步骤要点：全是要点

步骤命令：sudo vim /etc/dhcp/dhcpd.conf

修改好的dhcpd.conf文件内容:

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subnet 192.168.20.0 netmask 255.255.255.0
{
        range 192.168.20.10 192.168.20.100;
        option routers 192.168.20.2;
        option broadcast-address 192.168.20.255;
        default-lease-time 7200;
        max-lease-time infinite;
}

4、启动dhcpd服务

这篇文章是由Siralop写的

步骤命令：sudo systemctl start dhcpd

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[apiclo@bogon ~]$ sudo systemctl status dhcpd.service
● dhcpd.service - DHCPv4 Server Daemon
   Loaded: loaded (/usr/lib/systemd/system/dhcpd.service; disabled; vendor preset: disabled)
   Active: active (running) since 四 2025-02-27 13:51:00 CST; 9min ago
     Docs: man:dhcpd(8)
           man:dhcpd.conf(5)
 Main PID: 17215 (dhcpd)
   Status: "Dispatching packets..."
    Tasks: 1
   CGroup: /system.slice/dhcpd.service
           └─17215 /usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd --no-pid

2月 27 13:51:00 bogon dhcpd[17215]: ** Ignoring requests on ens33.  If this is not what
2月 27 13:51:00 bogon dhcpd[17215]:    you want, please write a subnet declaration
2月 27 13:51:00 bogon dhcpd[17215]:    in your dhcpd.conf file for the network segment
2月 27 13:51:00 bogon dhcpd[17215]:    to which interface ens33 is attached. **
2月 27 13:51:00 bogon dhcpd[17215]: 
2月 27 13:51:00 bogon dhcpd[17215]: Sending on   Socket/fallback/fallback-net
2月 27 13:51:08 bogon dhcpd[17215]: DHCPDISCOVER from 00:0c:29:87:26:09 via ens36
2月 27 13:51:09 bogon dhcpd[17215]: DHCPOFFER on 192.168.20.10 to 00:0c:29:87:26:09 via ens36
2月 27 13:51:09 bogon dhcpd[17215]: DHCPREQUEST for 192.168.20.10 (192.168.20.1) from 00:0c:29:...ns36
2月 27 13:51:09 bogon dhcpd[17215]: DHCPACK on 192.168.20.10 to 00:0c:29:87:26:09 via ens36
Hint: Some lines were ellipsized, use -l to show in full.

这篇文章是由Siralop写的

二、客户端需要做的事情

1、查看虚拟客户机获取到的地址

步骤命令：ifconfig | grep inet && ifconfig
这篇文章是由Siralop写的

看到虚拟客户机的HOST Only网卡(ens36)成功获取到IP地址

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[siralop@localhost ~]$ ifconfig | grep inet
        inet 192.168.50.129  netmask 255.255.255.0  broadcast 192.168.50.255
        inet6 fe80::aee8:ef05:68:a090  prefixlen 64  scopeid 0x20<link>
        inet6 fd15:4ba5:5a2b:1008:58be:690d:e07e:38b0  prefixlen 64  scopeid 0x0<global>
        inet 192.168.20.10  netmask 255.255.255.0  broadcast 192.168.20.255
        inet6 fe80::3fa5:781f:b026:f27f  prefixlen 64  scopeid 0x20<link>
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
[siralop@localhost ~]$ ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.50.129  netmask 255.255.255.0  broadcast 192.168.50.255
        inet6 fe80::aee8:ef05:68:a090  prefixlen 64  scopeid 0x20<link>
        inet6 fd15:4ba5:5a2b:1008:58be:690d:e07e:38b0  prefixlen 64  scopeid 0x0<global>
        ether 00:0c:29:87:26:ff  txqueuelen 1000  (Ethernet)
        RX packets 2680  bytes 280767 (274.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2518  bytes 249462 (243.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens36: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.20.10  netmask 255.255.255.0  broadcast 192.168.20.255
        inet6 fe80::3fa5:781f:b026:f27f  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:87:26:09  txqueuelen 1000  (Ethernet)
        RX packets 796  bytes 86066 (84.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 936  bytes 155225 (151.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

这篇文章是由Siralop写的

2、检查客户机当前IP的来源：

步骤命令：sudo dhclient -v ens36

可以看到DHCP服务器在192.168.20.1

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[siralop@localhost ~]$ sudo dhclient -v ens36
Internet Systems Consortium DHCP Client 4.2.5
Copyright 2004-2013 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/ens36/00:0c:29:87:26:09
Sending on   LPF/ens36/00:0c:29:87:26:09
Sending on   Socket/fallback
DHCPDISCOVER on ens36 to 255.255.255.255 port 67 interval 3 (xid=0x24b00029)
DHCPREQUEST on ens36 to 255.255.255.255 port 67 (xid=0x24b00029)
DHCPOFFER from 192.168.20.1
DHCPACK from 192.168.20.1 (xid=0x24b00029)
bound to 192.168.20.10 -- renewal in 3594 seconds.

这篇文章是由Siralop写的