[linux] 네트워크, 본딩 설정

CentOS

단일 네트워크 설정

$ vi /etc/sysconfig/network-scripts/ifcfg-eth0
---
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
NM_CONTROLLED=yes
IPADDR=192.168.100.2
GATEWAY=192.168.100.1
NETMASK=192.168.100.255

 

본딩 네트워크 설정

선행 작업

$ vi /etc/sysconfig/network-scripts/ifcfg-bond0
---
DEVICE=bond0
BOOTPROTO=static
ONBOOT=yes
NM_CONTROLLED=no
IPADDR=x.x.x.x
NETMASK=x.x.x.x
BONDING_OPT=“mode=0 miimon=100”

$ vi /etc/sysconfig/network
---
NETWORKING=yes
HOSTNAME=
NOZEROCONF=yes
GATEWAY=x.x.x.x

 

본딩 설정 방법

이더넷 두 개 정하기(eth0, eth1)

$ vi /etc/sysconfig/network-scripts/ifcfg-eth0
---
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
NM_CONTROLLED=no
HWADDR=x:x:x:x:x:x
MASTER=bond0
SLAVE=yes


$ vi /etc/sysconfig/network-scripts/ifcfg-eth1
---
DEVICE=eth1
BOOTPROTO=static
ONBOOT=yes
NM_CONTROLLED=no
HWADDR=x:x:x:x:x:x
MASTER=bond0
SLAVE=yes

 

Ubuntu 22.04

단일 네트워크 설정

$ vi /etc/netplan/00-installer-config.yaml
---
network:
  ethernets:
    enp3s0:
      addresses: [192.168.100.2/24]
      routes:
        - to: 0.0.0.0/0
          via: 192.168.100.1
      nameservers:
        addresses: [8.8.8.8, 1.1.1.1]
  version: 2

 

본딩 네트워크 설정

선행 작업

$ sudo modprobe bonding
$ sudo lsmod | grep bonding
bonding               200704  0
tls                   114688  1 bonding
$ sudo apt install ifenslave
$ echo 'bonding' | sudo tee -a /etc/modules
$ ip a

 

본딩 설정 방법

$ vi /etc/netplan/00-installer-config.yaml
---
network:
  ethernets:
    enp3s0:
      dhcp4: no
    enp4s0:
      dhcp4: no
  bonds:
    bond0:
      interfaces: [enp3s0, enp4s0]
      addresses: [192.168.100.100/24]
      gateway4: 192.168.100.1
      parameters:
        mode: active-backup
        mii-monitor-interval: 100
      nameservers:
        addresses: [8.8.8.8, 1.1.1.1]
  version: 2

 

네트워크 재시작

$ netplan apply

 

본딩 설정 확인

$ cat /proc/net/bonding/bond0

 

본딩 모드 설명

MODE 0 - balance-rr

MODE 1 - active-backup

MODE 2 - balance-xor

MODE 3 - broadcast