先借鉴一下流行的public cloud provider 的配置:

vultr private network 配置:

Vultr 建议private network 的MTU 设置为1450

# Private network: net5d808a0cc22db
DEVICE=eth1
ONBOOT=yes
BOOTPROTO=static
IPADDR=10.25.96.3
NETMASK=255.255.240.0
MTU=1450

 

下面我们来看看digitalocean:

# Created by cloud-init on instance boot automatically, do not edit.
#
BOOTPROTO=none
DEVICE=eth1
HWADDR=ba:11:3e:a9:43:5b
IPADDR=10.138.132.226
MTU=1500
NETMASK=255.255.0.0
ONBOOT=yes
TYPE=Ethernet
USERCTL=no