CentOS 7 网卡配置多个IP地址

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2016-12-05 by dongnan

目标

centos 7.2 单个网卡，配置多个IP地址，例如 58.XX.XX.41 - 58.XX.XX.50。

步骤

网卡配置文件

cat /etc/sysconfig/network-scripts/ifcfg-eth0

TYPE=Ethernet
# ...省略
NAME=eth0
DEVICE=eth0
BOOTPROTO="static"
GATEWAY="58.XX.XX.33"
IPADDR="58.XX.XX.41"
NETMASK="255.255.255.224"
DNS1=202.106.0.20
DNS2=202.106.46.151
# ...省略

创建 range 配置文件

cat /etc/sysconfig/network-scripts/ifcfg-eth0-range0

IPADDR_START=58.XX.XX.42
IPADDR_END=58.XX.XX.50
CLONENUM_START=0
NETMASK=255.255.255.224

验证

ip addr show eth0

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 9a:23:40:2f:ce:XX brd ff:ff:ff:ff:ff:ff
    inet 58.XX.XX.41/27 brd 58.XX.XX.63 scope global eth0
       valid_lft forever preferred_lft forever
    inet 58.XX.XX.42/27 brd 58.XX.XX.63 scope global secondary eth0:0
    # ...省略
       valid_lft forever preferred_lft forever
    inet 58.XX.XX.50/27 brd 58.XX.XX.63 scope global secondary eth0:8
       valid_lft forever preferred_lft forever
    inet6 fe80::9823:40ff:fe2f:ce75/64 scope link
       valid_lft forever preferred_lft forever

参考

• https://www.globo.tech/learning-center/bind-multiple-ip-centos-7-linux-server/