CentOS VirtualBox虚拟机多网卡配置

eth0是NAT，另外一块(eth4)是Host-Only.

1. #确认网卡MAC
   [root@localhost ~]# ifconfig -a | grep HW
   eth0      Link encap:Ethernet  HWaddr 08:00:27:B2:9F:F5
   eth4      Link encap:Ethernet  HWaddr 08:00:27:BB:84:F9

2. [root@localhost ~]# vi /etc/udev/rules.d/70-persistent-net.rules
   # PCI device 0x8086:0x100e (e1000)
   SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:B2:9F:F5", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
   
   # PCI device 0x8086:0x100e (e1000)
   SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:BB:84:F9", ATTR{type}=="1", KERNEL=="eth*", NAME="eth4"

3. [root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
   DEVICE="eth0"
   BOOTPROTO="dhcp"
   HWADDR="08:00:27:B2:9F:F5"
   IPV6INIT="yes"
   NM_CONTROLLED="yes"
   ONBOOT="yes"
   TYPE="Ethernet"
   UUID="56f45b3e-1d42-4cf8-a78e-4a041835f3a1"

4. [root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth4
   DEVICE="eth4"
   BOOTPROTO=static
   IPADDR=192.168.56.102
   GATEWAY=192.168.56.1
   NETMASK=255.255.255.0
   HWADDR="08:00:27:BB:84:F9"
   NM_CONTROLLED="yes"
   ONBOOT="yes"
   TYPE="Ethernet"
   UUID="56f45b3e-1d42-4cf8-a78e-4a041835f3a1"