Tenda 4G680 User Manual page 53

Please ensure that router obtains an IP address from the public network. This function may not work
on a host with an IP address of a private network. Common IPv4 addresses are classified into class A,
class B and class C. Private IP addresses of class A range from 10.0.0.0 to 10.255.255.255; Private IP
addresses of class B range from 172.16.0.0‐172.31.255.255; Private IP addresses of class C range from
192.168.0.0‐192.168.255.255.
Server
IP address：192.168.0.101
Procedures for setting a DMZ host:
Start a web browser on the device connected to the router, and visit 192.168.0.1.
Step 1
Choose Security > DMZ.
Step 2
Enter 192.168.0.101 in DMZ Host.
Step 3
Click Apply.
Step 4
‐‐‐End
Follow the steps above for setting a DMZ host, you can access the intranet server by visiting
"Intranet service layer protocol name://the present WAN IP address of the router", which is
"ftp://102.33.66.88" in this example. If the intranet service port is not the default port, you can
access the intranet server by visiting "Internal service layer protocol name://the present WAN IP
address of the router:internal service port".

When the default intranet service port is 80, please change it to an uncommon port (1024‐65535)
manually, such as 9999.

If internet users still cannot access the server after the configuration, please try to disable the
system firewall, anti‐virus software on the DMZ host and try again.
Access with an IP address
WAN IP：
102.33.66.88
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