ZTE ZXV10 W300 - How to change DNS servers

Mediaket shows you how to change the DNS  servers in ZTE ZXV10 W300 modem in less than 1 minute.
Changing your ISP's DNS servers can help to:

Increase speed browsing by moving to a faster DNS server.
Accessing blocked websites.
Improve security by changing to more secure DNS servers.
Keep your children safe by blocking inappropriate websites by selecting a Family Safe DNS server.

ZTE ZXV10 W300 modem-router description:

Specifically designed for residential and markets, ZXV10 W300 allows users to share ADSL access from their PCs or STBs through Ethernet or 802.11g/b wireless interface. For high-speed Internet and IPTV service, it provides ATM QoS and IP QoS to meet different requirements.
It also provides secure wireless encryption modes and powerful SPI firewall to protect network security. It supports remote network management through TR-069, SNMP, CLI and Web GUI.

Hardware Support:
The device offers the following hardware features support.

Interface:
The device provides the following interfaces:
4 x 10/100Mbps Ethernet Ports(RJ45).
1 x ADSL/ADSL2/ADSL2+ Port(RJ11).
1 x 802.11g/b WIFI Interface.

Chipset:
The device utilizes the TrendChip TC3162P2H chipset.
WLAN Module Antenna:
The device uses built-in antenna with 2 dBi gain for Wireless LAN module.