how to config vlan in RHEL

最新推荐文章于 2024-09-07 22:41:34 发布

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#network #attributes #interface #centos #reference

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本文介绍虚拟局域网(VLAN)的概念及其在RHEL或CentOS系统中的配置方法。通过软件配置而非物理移动设备来实现网络的重组。示例中展示了如何为单一网络接口eth0配置带有VLAN ID 168的IP地址。

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A virtual LAN, commonly known as a VLAN, is a group of hosts with a common set of requirements that communicate as if they were attached to the same broadcast domain, regardless of their physical location. A VLAN has the same attributes as a physical LAN, but it allows for end stations to be grouped together even if they are not located on the same network switch. Network reconfiguration can be done through software instead of physically relocating devices. [ref-1]

There’re more than one way to configure VLAN In RHEL or CENTOS [ref-2]. Followed a way.

Suppose we have only 1 network interface which is eth0, and we want to configure an IP address with VLAN ID 168. In /etc/sysconfig/network-scripts directory, configure a fake interface with the name “ifcfg-eth0.168” besides ifcfg-eth0, which 168 is VLAN ID. Execute “service network restart” and then the IP takes effect. Pay attention to DEVICE name and “VLAN=yes”.

Followed config files.

#ifcfg-eth0

DEVICE=eth0

ONBOOT=yes

BOOTPROTO=none

HWADDR=1C:C1:DE:04:5F:D8

#ifcfg-eth0.168

DEVICE=eth0.168

ONBOOT=yes

VLAN=yes

BOOTPROTO=none

IPADDR=192.168.1.2