2WAN 3LAN VPN QoS Security Router
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has been set up, the Internet IP server or PC which is mapped with a LAN port will be exposed
on the Internet. To prevent Internet users from actively connecting with the One-on-One NAT
server or PC, please set up a proper denial rule for access, as described Firewall.
4.6 DDNS- Dynamic Domain Name Service
DDNS supports the dynamic web address transfer for QnoDDNS.org.cn, 3322.org,
DynDNS.org and DtDNS.com. This is for VPN connections to a website that is built with dynamic
IP addresses, and for dynamic IP remote control. For example, the actual IP address of an ADSL
PPPoE time-based system or the actual IP of a cable modem will be changed from time to time. To
overcome this problem for users who want to build services such as a website, it offers the
function of dynamic web address transfer. This service can be applied from www.qno.cn/ddns,
www.3322.org, www.dyndns.org, or www.dtdns.com, and these are free.
Also, in order to solve the issue that DDNS server is not stable, the device can update the
dynamic IP address with different services at the same time.