LinkHub HH515v 5G CPE User Manual
14
Blacklist Devices with a MAC address in this list cannot access the internet.
DDNS
WAN IP address is needed when some functions of your CPE are enabled. If the WAN IP 
address of your CPE changes, these functions may not work properly. 
The Dynamic Domain Name Server (DDNS) function allows you to map a dynamic WAN 
IP address (public IP address) to a static domain name, helping internet users (WAN side) 
access the CPE network by static domain name. 
DMZ
If external users cannot access certain network services within the LAN, you can enable the 
DMZ function and set a new host IP address.
UPnP
Universal Plug and Play (UPnP) is a set of networking protocols that allows connected 
devices to discover each other and establish functional network services for data sharing, 
communications, and entertainment. 
VPN
Virtual Private Network (VPN) is a dedicated network across the shared or public network 
(usually the internet). The VPN technology allows employees at a branch of an enterprise 
and employees at the headquarters to exchange resources conveniently without exposing 
these resources to other internet users.
Port Forwarding
This function enables external users to access FTP and other service within the LAN. 
Parental control
Set internet access schedule for the client devices on the CPE network, and define which 
websites the client devices can and cannot visit.
To manage parental control, click 
Set, then set internet access schedule and specify website 
blacklist.
4.5 System
In this section, you can quickly view the device information, reboot or reset your device, 
modify login password, and more. 










