Install Virtualbox in Centos and configure Bridge network

Install Virtualbox in Centos and configure Bridge network

After Install Virtual OS in Master Machine do the below steps

Step 1: login to the master OS and open terminal.

Step 2: Go to /etc/sysconfig/network-scripts/

Step 3: Install bridge-utils by using the below command.

#Yum install bridge-utils

#mkdir backup

#cp ifcfg-eth0 backup/

#vi ifcfg-eth0

Step 4: comment IPADDR

Step 5: create ifcfg-br0 file and add the below comments in ifcfg-br0

DEVICE=br0

BOOTPROTO=none

#HWADDR=00:1c:c0:61:d8:b2

ONBOOT=yes

NETMASK=255.255.240.0

IPADDR=10.10.17.4

GATEWAY=10.10.16.13

TYPE=Bridge

USERCTL=no

IPV6INIT=no

PEERDNS=yes

Step 6: give your IPADDR,NETMASK and GATEWAY and then run the below commands in terminal.

#/usr/sbin/brctl addbr br0
#/usr/sbin/brctl setfd br0 0

#/usr/sbin/brctl sethello br0 0 #?
#/usr/sbin/brctl addif br0 eth0

#/etc/init.d/network restart

#brctl show

Step 7: Open virtualbox and select the virtual OS(slave)

Step 8: click the settings then it shows a new window.

Step 9: In here select network.

Step 10: In Adapter 1 change the Attached to dropdown to Host Interface and give Interface Name vbox0

Step 11: Go to the Master OS terminal and execute the below command

#VboxAddIF vbox0 root br0

Step 12: start the slave machine and set ip and ping some Lan IP if its pinging fine there is no problem.

Step 13: If its not pinging check your master and slave firewall configurations.