Tenda AC21 User Manual

137
11.9 DDNS
11.9.1 Overview
DDNS normally interworks with virtual server, DMZ host and remote management, so that the
internet users can be free from the influence of dynamic WAN IP address and access the internal
server or the router’s web UI with a fixed domain name.
To access the configuration page, log in to the web UI of the router, and choose Advanced
Settings > DDNS.
Parameter description
Parameter
Description
DDNS
It is used to enable or disable the DDNS function.
Service Provider
It specifies the DDNS service provider.
User Name
It specifies the user name and password registered on a DDNS service provider's website
for logging in to the DDNS service.
Password
Domain Name
It specifies the domain name registered on the DDNS service provider’s website. If this
field is invisible after choosing the service provider, it is not required.
Connection
Status
It specifies the current connection status of the DDNS service.

Tenda AC21 Specifications

General

USB port	No
DC-in jack	Yes
Connectivity technology	Wireless
Ethernet LAN (RJ-45) ports	3
Product type	Tabletop router
Product color	Black
LED indicators	LAN, System, WAN, WLAN, WPS
Wi-Fi band	Dual-band (2.4 GHz / 5 GHz)
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN data transfer rate (max)	2033 Mbit/s
WLAN data transfer rate (first band)	300 Mbit/s
WLAN data transfer rate (second band)	1733 Mbit/s
Certification	CE/FCC/RoHS
Processor cores	2
Processor frequency	1000 MHz
VPN support	IPsec, L2TP, PPTP
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Transmit power	20/23 dBmW
Antennas quantity	6
Antenna gain level (max)	6 dBi
Cables included	LAN (RJ-45)
Output current	1.5 A
Output voltage	12 V
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	50 - 60 Hz
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 90 %
Security algorithms	WPA, WPA-PSK, WPA2, WPA2-PSK
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	150.6 mm
Width	231.3 mm
Height	39.6 mm