Dynamic Dns - ZyXEL Communications P-324 User Manual

Prestige 324 User's Guide
LABEL
Domain Name
Administrator
Inactivity Timer
System DNS Servers (if applicable)
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
computer before you can access it. The Prestige uses a system DNS server (in the order you specify here)
to resolve domain names for VPN, DDNS and the time server.
First DNS Server
Second DNS
Server
Third DNS
Server
Apply
Reset
4.3

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.
4-2
Table 4-1 System General Setup
Enter the domain name (if you know it) here. If you leave this field blank, the ISP may
assign a domain name via DHCP.
The domain name entered by you is given priority over the ISP assigned domain
name.
Type how many minutes a management session (either via the web configurator or
SMT) can be left idle before the session times out. The default is 5 minutes. After it
times out you have to log in with your password again. Very long idle timeouts may
have security risks. A value of "0" means a management session never times out, no
matter how long it has been left idle (not recommended).
Select From ISP if your ISP dynamically assigns DNS server information (and the
Prestige's WAN IP address). The field to the right displays the (read-only) DNS server
IP address that the ISP assigns.
Select User-Defined if you have the IP address of a DNS server. Enter the DNS
server's IP address in the field to the right. If you chose User-Defined, but leave the IP
address set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set
a second choice to User-Defined, and enter the same IP address, the second User-
Defined changes to None after you click Apply.
Select None if you do not want to configure DNS servers. If you do not configure a
system DNS server, you must use IP addresses when configuring VPN, DDNS and the
time server.
Click Apply to save your changes back to the Prestige.
Click Reset to begin configuring this screen afresh.
DESCRIPTION
System Screens