今天拿到客户两笼刀片机，进行RHEL6U3系统的安装操作，打算安装完第一台刀片之后，将其配置成KICKSTART服务器对其他刀片进行网络安装。
然而，安装完第一片刀之后，对其进行IP的设置。
1. 首先查看有多少个网卡
[root@blog01 ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 38:ea:a7:a1:fd:66 brd ff:ff:ff:ff:ff:ff
inet6 fe80::3aea:a7ff:fea1:fd66/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:6a brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:68 brd ff:ff:ff:ff:ff:ff
5: eth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:6c brd ff:ff:ff:ff:ff:ff
6: eth4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:69 brd ff:ff:ff:ff:ff:ff
7: eth5: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:6d brd ff:ff:ff:ff:ff:ff
8: eth6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:6e brd ff:ff:ff:ff:ff:ff
9: eth7: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 38:ea:a7:a1:fd:72 brd ff:ff:ff:ff:ff:ff
2. 查看哪些网卡是连接正常的
[root@blog01 ~]# for i in `seq 0 7`
> do
> res=`ethtool eth$i |grep Link |awk -F: '{print $2}'`
> echo "eth$i Link $res"
> done
eth0 Link yes
eth1 Link yes
eth2 Link no
eth3 Link no
eth4 Link no
eth5 Link no
eth6 Link no
eth7 Link no
3. 可以看出eth0,eth1是连接成功的
4. 对eth0配置IP地址
从客户获得的IP设置范围是10.196.28.0/24 ,该网段端口被设置成了Trunk模式。
5.手动将eth0加入vlan id为528的VLAN，并配置IP
[root@blog01 ~]# vconfig add eth0 528
[root@blog01 ~]# ifconfig eth0.528 10.196.28.43 netmask 255.255.255.0
[root@blog01 ~]# ping -W1 -c2 10.196.28.254
PING 10.196.28.254 (10.196.28.254) 56(84) bytes of data.
64 bytes from 10.196.28.254: icmp_seq=1 ttl=255 time=1.14 ms
64 bytes from 10.196.28.254: icmp_seq=2 ttl=255 time=1.15 ms
--- 10.196.28.254 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 1.149/1.154/1.159/0.005 ms
6.写入网卡配置文件
为了使得系统重启后，IP配置仍旧生效，写入系统配置文件
另外本机需要作为KVM虚拟化平台，故需要创建桥接设备br0
[root@blog01 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
TYPE=Ethernet
BOOTPROTO=none
[root@blog01 ~]#cat /etc/sysconfig/network-scripts/ifcfg-eth0.528
DEVICE=eth0.528
ONBOOT=yes
BOOTPROTO=none
VLAN=yes
TYPE=Ethernet
BRIDGE=br0
[root@blog01 ~]#cat /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE=br0
ONBOOT=yes
BOOTPROTO=none
TYPE=Bridge
IPADDR=10.196.28.43
NETMASK=255.255.255.0
GATEWAY=10.196.28.254
7.重新启动网络服务，查看最终网卡配置信息
[root@blog01 ~ ]# service network restart
[root@blog01 ~]# cat /proc/net/vlan/config
VLAN Dev name | VLAN ID
Name-Type: VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
eth0.528 | 528 | eth0
[root@SJC42KVM01 ~]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.38eaa7a1fd66 no eth0.528
[root@SJC42KVM01 ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 38:EA:A7:A1:FD:66
inet6 addr: fe80::3aea:a7ff:fea1:fd66/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:14600981 errors:0 dropped:0 overruns:0 frame:0
TX packets:16880 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1175506152 (1.0 GiB) TX bytes:4080056 (3.8 MiB)
[root@blog01 ~]# ifconfig eth0.528
eth0.528 Link encap:Ethernet HWaddr 38:EA:A7:A1:FD:66
inet6 addr: fe80::3aea:a7ff:fea1:fd66/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:600 errors:0 dropped:0 overruns:0 frame:0
TX packets:313 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:66715 (65.1 KiB) TX bytes:57925 (56.5 KiB)
[root@blog01 ~]# ifconfig br0
br0 Link encap:Ethernet HWaddr 38:EA:A7:A1:FD:66
inet addr:10.196.28.43 Bcast:10.196.28.255 Mask:255.255.255.0
inet6 addr: fe80::3aea:a7ff:fea1:fd66/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:549 errors:0 dropped:0 overruns:0 frame:0
TX packets:345 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:63581 (62.0 KiB) TX bytes:64296 (62.7 KiB)
8.测试网络连接是否通畅
[root@blog01 ~]# ping -W1 -c2 10.196.28.254
PING 10.196.28.254 (10.196.28.254) 56(84) bytes of data.
64 bytes from 10.196.28.254: icmp_seq=1 ttl=255 time=1.31 ms
64 bytes from 10.196.28.254: icmp_seq=2 ttl=255 time=0.907 ms
--- 10.196.28.254 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 0.907/1.108/1.310/0.204 ms
[root@blog01 ~]# ping -W1 -c2 10.192.28.254
PING 10.192.28.254 (10.192.28.254) 56(84) bytes of data.
64 bytes from 10.192.28.254: icmp_seq=1 ttl=249 time=2.63 ms
64 bytes from 10.192.28.254: icmp_seq=2 ttl=249 time=2.78 ms
--- 10.192.28.254 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1004ms
rtt min/avg/max/mdev = 2.635/2.709/2.784/0.090 ms
配置完成！
CentOS/Linux网卡设置 IP地址配置：http://www.linuxdiyf.com/linux/8275.html
在Ubuntu 15.04下自定义DHCP网络DNS Server IP地址的方法：http://www.linuxdiyf.com/linux/11809.html
在CentOS 7上给一个网卡分配多个IP地址：http://www.linuxdiyf.com/linux/10092.html
Redhat Linux系统配置大量IP地址：http://www.linuxdiyf.com/linux/671.html
在Linux下获取全国各地IP地址段方法：http://www.linuxdiyf.com/linux/7802.html