Draytek Vigor2500V Manual page 85

Vigor2500V series
Chapter 7
Dynamic DNS
7.1 Introduction
The ISP often provides you with a dynamic IP address when you connect to
your ISP. It means that the public IP address allocated to your router
changes each time you connect to the ISP. The remote users can not
predict your current IP address to find you if you are planning to run a local
server.
The facilities of Dynamic DNS let remote users be able to get to your network
via the registered online WAN IP address (such as hostnmae.dyndns.org)
offered by from the Dynamic DNS service providers. i.e. The Dynamic
DNS function allows the router to update its online WAN IP address which
assigned by ISP to the specified Dynamic DNS server. Once the router is
online, you will be able to use the registered domain name to access the
router or internal virtual servers from the Internet.
You can position the Dynamic DNS service providers as the postman and
the registered online WAN IP address (such as hostnmae.dyndns.org) as
your mail box No. as you interpret your dynamic IP address as your tentative
address of your rented house. Your friends want to reach you and they can
always send package to your mail box if you often changed rented house.
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