Настройка Bridge

Настройка Bridge на примере CentOS 6.4

yum install bridge-utils tunctl -y

Создаем файл настроек /etc/sysconfig/network-scripts/ifcfg-br0

DEVICE="br0"
TYPE="Bridge"
BOOTPROTO="static"
IPADDR="192.168.1.10"
NETMASK="255.255.255.0"
DELAY="0"
IPV6INIT="no"
IPV6_AUTOCONF="no"
ONBOOT="yes"

Убираем в файле настроек /etc/sysconfig/network-scripts/ifcfg-eth0 настройки сети и добавляем

BRIDGE="br0"

Перезапускаем network-и

service network restart

Проверяем

brctl show

FROM

Несколько ip адресов на интерфейсе

# vi /etc/network/interfaces 

auto lo
iface lo inet loopback

allow-hotplug eth0
auto eth0
iface eth0 inet static
        address 192.168.1.10
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        dns-nameservers 192.168.1.1

allow-hotplug eth0:1
auto eth0:1
iface eth0:1 inet static
        address 192.168.2.10
        netmask 255.255.255.0
        network 192.168.2.0
        broadcast 192.168.2.255
        gateway 192.168.2.1
        dns-nameservers 192.168.2.1

...

allow-hotplug eth0:x
auto eth0:x
iface eth0:x inet static
        address 192.168.x.10
        netmask 255.255.255.0
        network 192.168.x.0
        broadcast 192.168.2.255
        gateway 192.168.x.1
        dns-nameservers 192.168.x.1

Full-duplex, Linux, mii-tool

100mb Full-duplex

/sbin/mii-tool -F 100baseTx-FD eth0

restart autonegotiation

mii-tool -r eth0

reset MII to poweron state

mii-tool -R eth0