WELL WRC7020N User’s Manual
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Dynamic DNS
When you want your internal server to be accessed by using
DNS name rather than using the dynamic IP address, you can
use the DDNS service. The DDNS server allows to alias a
dynamic IP address to a static hostname.
This chapter provides you an overview of the Dynamic DNS
feature of the modem and configuration details related to it.
Overview
If some host has a dynamic IP address that keeps changing
frequently, it is difficult to keep updating the IP record that is
associated with the domain name of this host in the zone files.
This will result in non-accessibility of this host on the Internet.
Dynamic DNS service allows to keep mapping of a dynamic IP
address of such host to a static hostname. Dynamic DNS
services are provided by many websites. The host needs to
register with some website and get a domain name. When the
IP address of the host changes, it just needs to send a message
to the website that's providing dynamic DNS service to this host.
For this to work, an automated update client needs to be
implemented. These update clients send update messages to
the servers whenever there is some change in the IP address of
that host. Then, the server updates the entries for that host and
replies back with some return code.
Above Figure explains one such scenario in which a host gets a
dynamic IP address for itself from a DHCP server. As the host
has registered with one of the dynamic DNS service providers
on the Internet, it sends an update message to the service
provider with host name and changed IP address. The service
provider updates the new IP address of the host in the zone
files that have entry for that host name and replies back with
some return code. The return code communicates the success
or failure of the update message. This process is repeated
every time the host's IP address changes.
Summary of Contents for WRC7020N
Page 1: ...WELL WRC7020N User s Manual 1 WELL WRC7020N User s Manual...
Page 16: ...WELL WRC7020N User s Manual 16 3 Double click on Internet Protocol TCP IP...
Page 26: ...WELL WRC7020N User s Manual 26 4 Double click on Internet Protocol Version 4 TCP IPv4...
Page 31: ...WELL WRC7020N User s Manual 31 4 Click Wireless Configuration...
Page 43: ...WELL WRC7020N User s Manual 43 3 Click on the ratio of Gateway and then click on Next...
Page 46: ...WELL WRC7020N User s Manual 46...
Page 49: ...WELL WRC7020N User s Manual 49 2 Double click Network Connections...
Page 90: ...WELL WRC7020N User s Manual 90 Figure 9 Wireless Network page...
Page 128: ...WELL WRC7020N User s Manual 128 7 Click on Turn on network discovery and file sharing...
Page 130: ...WELL WRC7020N User s Manual 130 9 AP s icon will show up Double click on it...
Page 132: ...WELL WRC7020N User s Manual 132 11 Enter AP s Self PIN Number and click next...
Page 134: ...WELL WRC7020N User s Manual 134 13 Enter the Passphrase and then click Next...
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