公司IDC机房服务器上部署了一套外网LB环境,默认配置的是外网ip的路由地址,由于要和其他内网机器通信,所以需要配置内网ip的路由地址。整个操作过程,记录如下,以供以后参考学习:
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1)内网网卡绑定
[root@external-lb01 ~]
# cd /etc/sysconfig/network-scripts/
[root@external-lb01 network-scripts]
# cat ifcfg-em1
DEVICE=em1
HWADDR=80:18:44:EB:0F:F4
TYPE=Ethernet
UUID=1bb1d77b-2cda-4640-b425-3ef692138937
ONBOOT=
yes
NM_CONTROLLED=no
BOOTPROTO=none
MASTER=bond0
SLAVE=
yes
[root@external-lb01 network-scripts]
# cat ifcfg-em2
DEVICE=em2
HWADDR=80:18:44:EB:0F:F5
TYPE=Ethernet
UUID=e28f73ac-9149-47d9-84eb-3e7c027038e2
ONBOOT=
yes
NM_CONTROLLED=no
BOOTPROTO=none
MASTER=bond0
SLAVE=
yes
[root@external-lb01 network-scripts]
# cat ifcfg-bond0
DEVICE=bond0
name=
'bond0'
TYPE=Ethernet
ONBOOT=
yes
NM_CONTROLLED=no
BOOTPROTO=none
IPADDR=10.0.36.21
NETMASK=255.255.255.0
GATEWAY=10.0.36.1
BONDING_OPTS=
'mode=4 miimon=100'
2)外网网卡绑定
[root@external-lb01 network-scripts]
# cat ifcfg-em3
DEVICE=em3
HWADDR=80:18:44:EB:0F:F6
TYPE=Ethernet
UUID=4f0384bb-7140-4161-9a87-561e0964120c
ONBOOT=
yes
NM_CONTROLLED=no
BOOTPROTO=none
MASTER=bond1
SLAVE=
yes
[root@external-lb01 network-scripts]
# cat ifcfg-em4
DEVICE=em4
HWADDR=80:18:44:EB:0F:F7
TYPE=Ethernet
UUID=2e9236cb-4745-46b7-bfb7-9bf7333fd99a
ONBOOT=
yes
NM_CONTROLLED=no
BOOTPROTO=none
MASTER=bond1
SLAVE=
yes
[root@external-lb01 network-scripts]
# cat ifcfg-bond1
DEVICE=bond1
name=
'bond1'
TYPE=Ethernet
ONBOOT=
yes
NM_CONTROLLED=no
BOOTPROTO=none
IPADDR=115.182.11.21
NETMASK=255.255.255.240
GATEWAY=115.182.11.17
BONDING_OPTS=
'mode=4 miimon=100'
3)修改网卡绑定配置
[root@external-lb01 network-scripts]
# cat /etc/modprobe.d/bonding.conf
alias
bond0 bonding
options bonding mode=4 miimon=100
alias
bond1 bonding
options bonding mode=4 miimon=100
网卡绑定生效:
[root@external-lb01 network-scripts]
# modprobe bonding
[root@external-lb01 network-scripts]
# /etc/init.d/network restart
[root@external-lb01 network-scripts]
# modprobe bonding
查看网卡绑定结果:
[root@external-lb01 network-scripts]
# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
........
........
[root@external-lb01 network-scripts]
# cat /proc/net/bonding/bond1
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
........
........
4)查看路由
[root@external-lb01 ~]
# route -n //默认配置了外网网关地址
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
115.182.11.16 0.0.0.0 255.255.255.240 U 0 0 0 bond1
10.0.36.0 0.0.0.0 255.255.255.0 U 0 0 0 bond0
169.254.0.0 0.0.0.0 255.255.0.0 U 1006 0 0 bond0
169.254.0.0 0.0.0.0 255.255.0.0 U 1007 0 0 bond1
0.0.0.0 115.182.11.17 0.0.0.0 UG 0 0 0 bond1
[root@external-lb01 ~]
# cat /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4
如上配置后,该机器可以
ping
通别的机器,及网络出去没有问题,因为配置了外网地址。
但是别的内网机器
ping
不通该机,这就需要配置该机的内网网关。
5)设置内网网关
临时设置内网网关(重启网卡服务后,这个临时设置的网关地址就消失了)
[root@external-lb01 ~]
# route add -net 10.0.0.0/8 gw 10.0.36.1
永久设置内网网关(这样重启网卡服务后,这个网关地址还会在)
[root@external-lb01 ~]
# vim /etc/sysconfig/network
GATEWAY=10.0.36.1
[root@external-lb01 ~]
# vim /etc/sysconfig/static-routes
any net 10.0.0.0
/8
gw 10.0.36.1
开启IP转发
[root@external-lb01 ~]
# echo "1" >/proc/sys/net/ipv4/ip_forward //临时开启
[root@external-lb01 ~]
# vim /etc/sysctl.conf
net.ipv4.ip_forward = 1
//
永久开启
重启网卡
[root@external-lb01 ~]
# /etc/init.d/network restart
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分类:
常规运维实录
本文转自散尽浮华博客园博客,原文链接:http://www.cnblogs.com/kevingrace/p/8018354.html,如需转载请自行联系原作者