Maxsolar's Linux Blog: (12) NIC bridging -- SuSE Linux

2012年10月31日星期三

(12) NIC bridging -- SuSE Linux

Setting up Bridge on SuSE Linux manually

SuSE Linux裡想要啟用bridge(IEEE 802.1d)功能，必須要先安裝bridge-utils套件；如果系統裡可以執行brctl這個指令，那麼你的系統已經可以建立bridge了。
假設現在要把eth0設定成bridge分享給VM作為與外部溝通的管道：

ifcfg-eth0	ifcfg-br0
BOOTPROTO='static' STARTMODE='auto' IPADDR='0.0.0.0/32' USERCONTROL='no'	BOOTPROTO='static' BRIDGE='yes' BRIDGE_FORWARDDELAY='0' BRIDGE_PORTS='eth0' IPADDR='192.168.10.22/24' GATEWAY=192.168.10.1 BRIDGE_STP='off' STARTMODE='auto' USERCONTROL='no'

ifcfg-eth0

ifcfg-br0

BOOTPROTO='static'
STARTMODE='auto'
IPADDR='0.0.0.0/32'
USERCONTROL='no'

BOOTPROTO='static'
BRIDGE='yes'
BRIDGE_FORWARDDELAY='0'
BRIDGE_PORTS='eth0'
IPADDR='192.168.10.22/24'
GATEWAY=192.168.10.1
BRIDGE_STP='off'
STARTMODE='auto'
USERCONTROL='no'

重新啟動網路後，看看裡頭的資訊吧！

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP qlen 1000
    link/ether f4:6d:04:7b:be:13 brd ff:ff:ff:ff:ff:ff
3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether f4:6d:04:7b:be:13 brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.22/24 brd 192.168.10.255 scope global br0
    inet6 fe80::f66d:4ff:fe7b:be13/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN 
    link/ether ca:f4:7c:0b:34:1f brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0

Bridge on bonding

延續先前bonding的設定，我們把bond0設定成bridge：

ifcfg-bond0	ifcfg-br0
BONDING_MASTER='yes' BONDING_MODULE_OPTS='mode=6 miimon=100' BONDING_SLAVE0='eth0' BONDING_SLAVE1='eth1' BOOTPROTO='static' IPADDR='0.0.0.0/32' STARTMODE='auto' USERCONTROL='no'	BOOTPROTO='dhcp' BRIDGE='yes' BRIDGE_FORWARDDELAY='0' BRIDGE_PORTS='bond0' IPADDR='192.168.10.22/24' GATEWAY=192.168.10.1 BRIDGE_STP='off' STARTMODE='auto' USERCONTROL='no'

ifcfg-bond0

ifcfg-br0

BONDING_MASTER='yes'
BONDING_MODULE_OPTS='mode=6 miimon=100'
BONDING_SLAVE0='eth0'
BONDING_SLAVE1='eth1'
BOOTPROTO='static'
IPADDR='0.0.0.0/32'
STARTMODE='auto'
USERCONTROL='no'

BOOTPROTO='dhcp'
BRIDGE='yes'
BRIDGE_FORWARDDELAY='0'
BRIDGE_PORTS='bond0'
IPADDR='192.168.10.22/24'
GATEWAY=192.168.10.1
BRIDGE_STP='off'
STARTMODE='auto'
USERCONTROL='no'

當然你想設定DHCP也行！別忘了重新啟動網路吧！

service network restart

Setting up Bridge on SuSE Linux by Yast2

我說不出我對於yast有多麼的崇敬，SuSE的yast真的可以說是系統管理工具的楷模，我深信所以試圖寫出比yast更優秀工具的工程師也會覺得黔驢技窮。

	在Yast2 -> Network Device裡，可以新增一個網路裝置。
	選擇建立Bridge。
	勾選要建立bridge的裝置。
	按下OK就完成了，非常帥氣的Yast!!!