nat

Contents

专有网络VPC的视频简介和组成_专有网络 VPC-阿里云帮助中心 - https://help.aliyun.com/zh/vpc/product-overview/what-is-a-vpc

  1. switch store mac address in a lookup table

  2. router store ip address in the routing table;

    forward data packet between computer networks

network address transalation

snat: translate source ip dnat: translate destination ip ;

详解SLB、EIP、NAT网关之间区别, 合理选择云上公网入口

  1. eip (elastic ip):弹性ip
  2. nat (network address translation): nat网关
  3. slb(server load balance)

底层都是都过nat实现

可用区:同一地区的不同的地方;电力和网络相互隔;

同一地域的不同可用区内网互联 https://cdn.jsdelivr.net/gh/toms2077/imgs@master/20230919/xMv0ewUcE9Ol.png

https://cdn.jsdelivr.net/gh/toms2077/imgs@master/20230919/o0mG38yqYNLw.png