VM虚拟机添加第二块网卡设置连接
一般在vmware安装虚拟机只是默认的一块网卡,不过实验需要双网卡,添加后配置文件没有,这个可以复制,问题是添加的网卡uuid不知道,这里我写上解决的步骤:cd /etc/sysconfig/network-scriptscp ifcfg-eth0 ifcfg-eth1把eth1的uuid,MAC这两行删了,这个是ifcfg-eth0的配置DEVICE=eth0HWADDR=00:0C:29:76
一般在vmware安装虚拟机只是默认的一块网卡,不过实验需要双网卡,添加后配置文件没有,这个可以复制,问题是添加的网卡uuid不知道,这里我写上解决的步骤:
cd /etc/sysconfig/network-scripts
cp ifcfg-eth0 ifcfg-eth1
把eth1的uuid,MAC这两行删了,
这个是ifcfg-eth0的配置
DEVICE=eth0
HWADDR=00:0C:29:76:F2:2B
TYPE=Ethernet
UUID=946173d6-61d5-452a-b1d0-dabee6373980
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
IPV4_FAILURE_FATAL=yes
DEVICE=eth0
IPADDR=192.168.22.231
PRIFIX=24
GATEWAY=192.168.22.254
DNS1=8.8.8.8
DOMAIN=114.114.114.114
DEFROUTE=yes
IPV6INIT=no
NAME=“System eth0”
下面是ifcfg-eth1配置
DEVICE=eth1
TYPE=Ethernet
ONBOOT=no
NM_CONTROLLED=yes
BOOTPROTO=none
IPV4_FAILURE_FATAL=yes
DEVICE=eth1
IPADDR=192.168.22.232
PRIFIX=24
GATEWAY=192.168.22.254
DNS1=8.8.8.8
DOMAIN=114.114.114.114
DEFROUTE=yes
IPV6INIT=no
NAME=“System eth1”
修改完后
rm -f /etc/udev/rules.d/70-persistent-net.rules
shutdown -r now
service network restart
虚拟机在遇到网卡的问题时,比如重装系统后,网卡不能启动,或者其他未知的问题,把ifcfg-eth0里面的uuid和MAC删除,然后再 rm /etc/udev/rules.d/70-persistent-net.rules 重启,删除的文件重启后系统会自动分配的,所以也不用备份
注意修改ifcfg-eth1的时候,名称也要修改,在本机ping两个ip都可以通,
如果复制ifcfg-eth1网卡时候,MAC没有删,会出现下面的错误提示
service network restart
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Device eth0 has different MAC address than expected, ignoring.
[FAILED]
Bringing up interface eth1:
Determining IP information for eth1… done. [ OK ]
附修改的shell
cat fixeth0.sh
if grep -q eth1 /etc/udev/rules.d/70-persistent-net.rules; then
sed -i ‘/eth0/d’ /etc/udev/rules.d/70-persistent-net.rules;
sed -i ‘s/eth1/eth0/g’ /etc/udev/rules.d/70-persistent-net.rules;
ETHERNET=grep eth0 /etc/udev/rules.d/70-persistent-net.rules | awk -F"," '{print $4}' | awk -F"\"" '{print $2}'
;
echo Ethernet Addr:
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ETHERNET; sed -i 's/HWADDR=".*"/HWADDR="'
ETHERNET;sed−i′s/HWADDR=".∗"/HWADDR="′ETHERNET’"/’ /etc/sysconfig/network-scripts/ifcfg-eth0;
/sbin/start_udev
/sbin/service network restart;
fi
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