多网卡IP配置

1. 首先查看网卡信息

   root@it:~# ip add
   1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
   link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   inet 127.0.0.1/8 scope host lo
   valid_lft forever preferred_lft forever
   inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever
   2: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
   link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
   valid_lft forever preferred_lft forever
   inet6 fe80::20c:29ff:fe2d:7940/64 scope link
   valid_lft forever preferred_lft forever
   3: eth1: mtu 1500 qdisc noop state DOWN group default qlen 1000
   link/ether 00:0c:29:2d:79:4a brd ff:ff:ff:ff:ff:ff
   4: eth2: mtu 1500 qdisc noop state DOWN group default qlen 1000
   link/ether 00:0c:29:2d:79:54 brd ff:ff:ff:ff:ff:ff

• 等会需要添加 eth1 和 eth2 IP信息

1. 在 /etc/netplan/ 目录下的 00-installer-config.yaml （该文件每个人都会不一样）

   root@it:~# vim /etc/netplan/00-installer-config.yaml

   This is the network config written by 'subiquity'

   network:
   version: 2
   ethernets:
   eth0:
   addresses:
   - 192.168.121.21/24
   gateway4: 192.168.121.2
   nameservers:
   addresses:
   - 8.8.8.8

   eth1:
     addresses:
       - 192.168.121.22/24
     gateway4: 192.168.121.2
     nameservers:
       addresses:
         - 114.114.114.114
   
   eth2:
     addresses:
       - 192.168.121.23/24
     gateway4: 192.168.121.2
     nameservers:
       addresses:
         - 114.114.144.144

2. 加载配置

   root@it:~# netplan apply
   root@it:~# ip add
   1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
   link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   inet 127.0.0.1/8 scope host lo
   valid_lft forever preferred_lft forever
   inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever
   2: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
   link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
   valid_lft forever preferred_lft forever
   inet6 fe80::20c:29ff:fe2d:7940/64 scope link
   valid_lft forever preferred_lft forever
   3: eth1: mtu 1500 qdisc fq_codel state UP group default qlen 1000
   link/ether 00:0c:29:2d:79:4a brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.22/24 brd 192.168.121.255 scope global eth1
   valid_lft forever preferred_lft forever
   inet6 fe80::20c:29ff:fe2d:794a/64 scope link
   valid_lft forever preferred_lft forever
   4: eth2: mtu 1500 qdisc fq_codel state UP group default qlen 1000
   link/ether 00:0c:29:2d:79:54 brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.23/24 brd 192.168.121.255 scope global eth2
   valid_lft forever preferred_lft forever
   inet6 fe80::20c:29ff:fe2d:7954/64 scope link tentative
   valid_lft forever preferred_lft forever

多网卡链路聚合配置

1. 查看绑定的网卡信息

   root@it:~# ip add
   1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
   link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   inet 127.0.0.1/8 scope host lo
   valid_lft forever preferred_lft forever
   inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever
   2: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
   link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
   valid_lft forever preferred_lft forever
   inet6 fe80::20c:29ff:fe2d:7940/64 scope link
   valid_lft forever preferred_lft forever
   3: eth1: mtu 1500 qdisc noop state DOWN group default qlen 1000
   link/ether 00:0c:29:2d:79:4a brd ff:ff:ff:ff:ff:ff
   4: eth2: mtu 1500 qdisc noop state DOWN group default qlen 1000
   link/ether 00:0c:29:2d:79:54 brd ff:ff:ff:ff:ff:ff

2. 在 /etc/netplan/ 目录下新建一个以 .yaml 结尾的文件

   root@it:~# cd /etc/netplan/
   root@it:/etc/netplan# touch bond.yaml

3. 编辑该文件

   root@it:/etc/netplan# vim bond.yaml
   network:
   version: 2
   ethernets:
   eth1:
   addresses: [] #绑定单网卡不需要写IP地址
   dhcp4: no
   eth2:
   addresses: []
   dhcp4: no

   bonds:
   bond0:
   addresses:
   - 192.168.121.100/24
   gateway4: 192.168.121.2
   nameservers:
   addresses:
   - 114.114.114.114
   interfaces:
   - eth1
   - eth2
   parameters: #参数
   mode: balance-rr #bond模式

4. 加载配置

   root@it:/etc/netplan# netplan apply
   root@it:/etc/netplan# ip add
   1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
   link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
   inet 127.0.0.1/8 scope host lo
   valid_lft forever preferred_lft forever
   inet6 ::1/128 scope host
   valid_lft forever preferred_lft forever
   2: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
   link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
   valid_lft forever preferred_lft forever
   inet6 fe80::20c:29ff:fe2d:7940/64 scope link
   valid_lft forever preferred_lft forever
   3: eth1: mtu 1500 qdisc fq_codel master bond0 state UP group default qlen 1000
   link/ether 3e:ba:29:6c:0d:e4 brd ff:ff:ff:ff:ff:ff
   4: eth2: mtu 1500 qdisc fq_codel master bond0 state UP group default qlen 1000
   link/ether 3e:ba:29:6c:0d:e4 brd ff:ff:ff:ff:ff:ff
   5: bond0: mtu 1500 qdisc noqueue state UP group default qlen 1000
   link/ether 3e:ba:29:6c:0d:e4 brd ff:ff:ff:ff:ff:ff
   inet 192.168.121.100/24 brd 192.168.121.255 scope global bond0
   valid_lft forever preferred_lft forever
   inet6 fe80::3cba:29ff:fe6c:de4/64 scope link
   valid_lft forever preferred_lft forever