虚拟机添加多张网卡和修改网卡名称

虚拟机添加网卡

1，NAT模式默认网卡

编辑=》虚拟网络编辑器

2，添加lan区段网卡

[root@localhost ~]# systemctl restart  network  
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:28:16:10 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.168/24 brd 10.1.1.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::2a7:1ef3:c2a:f37c/64 scope link 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:15:59:51 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:15:59:51 brd ff:ff:ff:ff:ff:ff
5: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 100
    link/none 
    inet 10.8.0.1/24 brd 10.8.0.255 scope global tun0
       valid_lft forever preferred_lft forever
    inet6 fe80::3f37:8ce1:9aac:888b/64 scope link flags 800 
       valid_lft forever preferred_lft forever
6: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:28:16:1a brd ff:ff:ff:ff:ff:ff
    inet6 fe80::204f:d979:fe1d:4a15/64 scope link 
       valid_lft forever preferred_lft forever

发现出现新的一张网卡ens36 但是没有网络信息，。进入【cd /etc/sysconfig/network-scripts】目录中，也没有ens36的配置文件。复制ens33的网络配置文件，并进行修改。【cp ifcfg-eth0 ifcfg-eth1】

cd /etc/sysconfig/network-scripts

cp ifcfg-ens33 ifcfg-ens36



[root@localhost network-scripts]# cat ifcfg-ens36
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
UUID=c7c64254-c4d2-4784-a1d6-d573136ab651 ##uuid随便改个数字不重复即可
DEVICE=ens36
ONBOOT=yes
IPADDR=172.16.1.168
NETMASK=255.255.255.0
GATEWAY=172.16.1.0
DNS1=8.8.8.8
PREFIX=24

systemctl restart network

 安装系统 修改网课名字ens33-》eth0  eth1......

安装界面 选择install centos 7  按tab键 在最后输入 net.ifnames=0  biosdevname=0