The Linux network card is set to bridge mode

The Linux network card is set to bridge mode 1. Add a network card and modify the associated Profile 1.1 virtual machine add NIC and configure related files

such as: eth2 for new add NIC

Cd/etc/sysconfig/network-scripts

CP Ifcfg-eth1 Ifcfg-eth2

VI ifcfg-eth2

Type=ethernet

Bootproto=none

Defroute=yes

Peerdns=yes

Peerroutes=yes

Ipv4_failure_fatal=no

Ipv6init=yes

Ipv6_autoconf=yes

Ipv6_defroute=yes

Ipv6_peerdns=yes

Ipv6_peerroutes=yes

Ipv6_failure_fatal=no

Name=eth2 # # #此处修改为eth2

#UUID =ea571b82-4ad0-4a1b-b831-a90fe5a682f5 Log off this line

Device=eth2 # # #修改为eth2

Onboot=yes

BRIDGE=BR1 # # #网桥设置为br1

VI IFCFG-BR1

Type=bridge

Defroute=yes

Peerdns=yes

Peerroutes=yes

Ipv4_failure_fatal=no

Ipv6init=no

Ipv6_autoconf=yes

Ipv6_defroute=yes

Ipv6_peerdns=yes

Ipv6_peerroutes=yes

Ipv6_failure_fatal=no

Name=br1

Device=br1

Onboot=yes

ipaddr=172.16.4.8

netmask=255.255.255.0

gateway=172.16.4.254

# # #根据需要设置ip或者不设置

2. Installing the Bridge Tool 2.1 installation Bridge-utils

Yum-y Install Bridge-utils

3. Activating eth2, BR1 and detecting 3.1 activating eth2, BR1

Ifup eth2

Ifup BR1

3.2 Test Results

IP addr

4:eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> MTU Qdisc pfifo_fast Qlen 1000

Link/ether 00:50:56:83:FF:CB BRD FF:FF:FF:FF:FF:FF

11:BR1: <BROADCAST,MULTICAST,UP,LOWER_UP> MTU Qdisc Noqueue

Link/ether 00:50:56:83:FF:CB BRD FF:FF:FF:FF:FF:FF

inet 172.16.4.8/24 BRD 172.16.4.255 Scope Global BR1

# # #发现两者mac地址相同, and IP can ping through

[[Email protected]***]# brctl Show

Bridge name Bridge ID STP enabled interfaces

BR1 8000.00505683FFCB No eth2

The Linux network card is set to bridge mode