Verizon TCL LINKZONE 5G UW User Manual page 22

Change SIM PIN
Manual DNS
This tab allows you to manually assign two Domain Name Server (DNS) IP addresses.
Manual DNS
Move the ON/OFF slider to turn DNS on or off.
DNS 1/2 IP address
DNS1 IP address is the address for the master network, and it is a must to use the
manual DNS feature. DNS2 IP address is optional and can be left blank.
DNS Rebinding
DNS Rebinding Protection
DNS rebinding is a kind of computer attack by manipulating resolution of domain names.
When DNS Rebinding Protection is enabled, your device is protected from DNS rebinding
attack. If you leave this option to Disabled, your device is exposed to cyber attack. Never
allow this option to Disabled.
Loopback Address Range
The loopback address range lists IPv4 addresses that are reserved for loopback, usually
starting from 127.0.0.1 to 127.225.225.225.
If DNS Rebinding Protection is enabled, the IP addresses within this range will be
protected from cyber attack.
Click Apply to save the settings.
Parental Control
Set internet access schedule for the client devices on the LINKZONE network, and
define which websites the client devices can and cannot visit.
To manage parental control, enable the status and click Set, then set internet access
schedule and specify website blacklist.
1. When the SIM PIN feature is enabled, click Change
PIN.
2. Enter the new SIM PIN code.
3. Click Apply.
NOTE: If you have entered the SIM PIN incorrectly for 3
times, the SIM is PUK locked. The page will jump to Wi-Fi
"PUK required" page. Follow the on-screen instructions to
obtain the PUK code.
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