首页 / 操作系统 / Linux / 重装CentOS后配置网卡报错提示Bringing uo interface eth0:bnx2 0000:02:
故障:在HP 785G6(服务器有2个集成网卡,4个独立网卡)上装CentOS6.5后配置网卡信息后,重启网卡报错,提示Bringing uo interface eth0:bnx2 0000:02:03.0:etho:register_cnicfailed Determining if ip address isalready in use for device eth0,网络不通,截图如下 排查经过:查看配置文件, [root@HGJ0205 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0没有问题, 查看网卡[root@HGJ0205 ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:26:55:DF:DD:9E inet addr:10.12.5.103 Bcast:10.12.5.255 Mask:255.255.255.0 inet6 addr: fe80::226:55ff:fedf:dd9e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4885599 errors:0 dropped:0 overruns:0 frame:0 TX packets:5632499 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1460799376 (1.3 GiB) TX bytes:2154273766 (2.0 GiB) Interrupt:30 Memory:fdce0000-fdd00000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:7752962 errors:0 dropped:0 overruns:0 frame:0 TX packets:7752962 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3827246039 (3.5 GiB) TX bytes:3827246039 (3.5 GiB) 网卡启动,已经配置了ip,没有问题,检查网关 [root@HGJ0205 ~]# ping 10.12.5.1 发现自己的网关也ping不同。 检查网线状况,发现网线不在集成网卡eth0上,而是在独立配置的网卡上,从而导致配置好网卡信息不是插网线的网卡,也就是说插网线的网卡没有网卡信息,所以不通。[root@HGJ0205 ~]#cat /etc/udev/rules.d/70-persistent-net.rules# This file was automatically generated bythe /lib/udev/write_net_rules# program, run by thepersistent-net-generator.rules rules file.## You can modify it, as long as you keepeach rule on a single# line, and change only the value of theNAME= key.# PCI device 0x8086:0x105e (e1000e) (customname provided by external tool)SUBSYSTEM=="net",ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:26:55:df:dd:9f",ATTR{type}=="1", KERNEL=="eth*", NAME="eth3"# PCI device 0x8086:0x105e (e1000e) (customname provided by external tool)SUBSYSTEM=="net",ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:26:55:e0:35:ef",ATTR{type}=="1", KERNEL=="eth*", NAME="eth5"# PCI device 0x14e4:0x164a (bnx2)SUBSYSTEM=="net",ACTION=="add", DRIVERS=="?*", ATTR{address}=="78:e7:d1:fb:6e:38", ATTR{type}=="1",KERNEL=="eth*", NAME="eth1"# PCI device 0x8086:0x105e (e1000e) (customname provided by external tool)SUBSYSTEM=="net",ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:26:55:df:dd:9e",ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"# PCI device 0x14e4:0x164a (bnx2) (customname provided by external tool)SUBSYSTEM=="net",ACTION=="add", DRIVERS=="?*", ATTR{address}=="78:e7:d1:fb:6e:3a", ATTR{type}=="1",KERNEL=="eth*", NAME="eth1"# PCI device 0x8086:0x105e (e1000e) (customname provided by external tool)SUBSYSTEM=="net",ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:26:55:e0:35:ee",ATTR{type}=="1", KERNEL=="eth*", NAME="eth4"6个网卡,看着都头晕。解决方案:既然找到问题解决它。只要把网线接口对应的配置文件配置好久可以,两个解决方案 一、配置好一个网络配置文件,然后把网线一个网口一个网口的测试,通了就说明是这个网卡的。 二、网线不动,一个一个配置所有的网卡,哪个通了也说明是对了注意:1、千万不要把所有的网卡都配置了测试,ip会冲突。 2、集成网卡和独立网卡的mac地址格式是不一样的,这样可以很快的分辨出你配置的是哪个网卡,红色的是集成网卡的,减少排查步骤。更多CentOS相关信息见CentOS 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=14本文永久更新链接地址