博文大纲:一、华为防火墙NAT的六个分类;二、解决NAT转换时的环路及无效ARP;三、server-map表的作用;四、NAT对报文的处理流程;五、各种常用NAT的配置方法;一、华为防火墙NAT的六个分类华为防火墙的NAT分类:NAT No-PAT:类似于Cisco的动态转换,只转换源IP地址,不转换端口,属于多对多转换,不能节约公网IP地址,使用情况较少。NAPT(Network Address and Port Translation,网络地址和端口转换):类似于Cisco的PAT转换,NA
centos7不能启动网卡报No suitable device found for this connection错误 错误1:ifup ens33 显示Error: Connection activation failed: No suitable device found for this connection.错误2:systemctl restart network 显示:Job for network.service failed because the control p