1: Address flowback generally refers to intranet users accessing internal servers within the company through public network addresses.
2: It is usually relatively easy for me to configure NAT on the WEB interface. The G0/0/0 interface of the router is connected to the external network, and the G0/0/1 interface is connected to the internal network. Log in to the router and find NAT in the IP service.
3: I usually use one-to-one address transfer, click New.
4: First use G0/0/0 to establish a NAT. After building this, you can use the public network address outside the company or use traffic within the company to open the server within the company. Select the interface of the external network for the interface. The current interface IP address of the external IP is the external network address by default. The external port number, internal IP, and internal port number are filled in according to the actual situation.
5: Create a new NAT. At this time, select the internal interface G0/0/1 for the interface name. Fill in the external network address, external port number, internal IP, and internal port number for the external IP. Fill in the actual situation.
6: But mine will report the following error. The address conflicts with interface or ARP IP. I don’t know the reason. Finally, I added NAT using the command line.
7: Log in to the router and enter the following command.
system-view 进入视图模式
interface GigabitEthernet0/0/1 进入0/0/1口
nat static protocol tcp global interface GigabitEthernet 0/0/0 6666 inside 192.168.10.20 80 netmask 255.255.255.255 输入NAT配置
quit 退出接口
quit 返回用户视图
save 保存配置8: After the configuration is completed, the address flowback function is implemented. Within the company, the public network address and port number can be used to access the company's internal server. If anyone knows why using the WEB method doesn't work, is there something wrong with my configuration or something else, please let me know.