EMG6726/8726-B10A User’s Guide
170
C
H A P T E R
12
Dynamic DNS Setup
12.1 Overview
DNS
DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice
versa. The DNS server is extremely important because without it, you must know the IP address of a
machine before you can access it.
In addition to the system DNS server(s), each WAN interface (service) is set to have its own static or
dynamic DNS server list. You can configure a DNS static route to forward DNS queries for certain domain
names through a specific WAN interface to its DNS server(s). The EMG uses a system DNS server (in the
order you specify in the
Broadband
screen) to resolve domain names that do not match any DNS
routing entry. After the EMG receives a DNS reply from a DNS server, it creates a new entry for the
resolved IP address in the routing table.
Dynamic DNS
Dynamic DNS allows you to update your current dynamic IP address with one or many dynamic DNS
services so that anyone can contact you (in NetMeeting, CU-SeeMe, etc.). You can also access your
FTP server or Web site on your own computer using a domain name (for instance myhost.dhs.org, where
myhost is a name of your choice) that will never change instead of using an IP address that changes
each time you reconnect. Your friends or relatives will always be able to call you even if they don't know
your IP address.
First of all, you need to have registered a dynamic DNS account with www.dyndns.org. This is for people
with a dynamic IP from their ISP or DHCP server that would still like to have a domain name. The Dynamic
DNS service provider will give you a password or key.
12.1.1 What You Can Do in this Chapter
• Use the
DNS Entry
screen to view, configure, or remove DNS routes (
).
• Use the
Dynamic DNS
screen to enable DDNS and configure the DDNS settings on the EMG (
).
12.1.2 What You Need To Know
DYNDNS Wildcard
Enabling the wildcard feature for your host causes *.yourhost.dyndns.org to be aliased to the same IP
address as yourhost.dyndns.org. This feature is useful if you want to be able to use, for example,
www.yourhost.dyndns.org and still reach your hostname.
Содержание EMG6726-B10A
Страница 16: ...16 PART I User s Guide...
Страница 26: ...Chapter 1 Introducing the EMG EMG6726 8726 B10A User s Guide 26 Figure 10 Wall Mounting Example...
Страница 36: ...Chapter 3 Quick Start EMG6726 8726 B10A User s Guide 36 Figure 18 Quick Start Result Summary...
Страница 59: ...59 PART II Technical Reference...
Страница 83: ...Chapter 7 Wireless EMG6726 8726 B10A User s Guide 83 Figure 35 Network Setting Wireless Advanced...
Страница 86: ...Chapter 7 Wireless EMG6726 8726 B10A User s Guide 86 Figure 36 Network Setting Wireless Channel Status...
Страница 141: ...Chapter 10 Quality of Service QoS EMG6726 8726 B10A User s Guide 141 Figure 85 Classification Setup Add Edit...
Страница 211: ...Chapter 22 Voice EMG6726 8726 B10A User s Guide 211 Figure 141 VoIP SIP SIP Account Add new account Edit...
Страница 216: ...Chapter 22 Voice EMG6726 8726 B10A User s Guide 216 Figure 143 VoIP SIP SIP Service Provider Add New Provider Edit...
Страница 279: ...279 PART III Appendices Appendices contain general information Some information may not apply to your device...