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Page 161 / 268 Scroll up to view Page 156 - 160
Chapter 12 Dynamic DNS Setup
P-660R-F1 Series User’s Guide
161
Dynamic DNS
server auto
detect IP
Address
Select this option only when there are one or more NAT routers between the
ZyXEL Device and the DDNS server. This feature has the DDNS server
automatically detect and use the IP address of the NAT router that has a public IP
address.
Note: The DDNS server may not be able to detect the proper IP
address if there is an HTTP proxy server between the ZyXEL
Device and the DDNS server.
Use specified IP
Address
Type the IP address of the host name(s). Use this if you have a static IP address.
Apply
Click
Apply
to save your changes back to the ZyXEL Device.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Table 61
Dynamic DNS (continued)
LABEL
DESCRIPTION
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Chapter 12 Dynamic DNS Setup
P-660R-F1 Series User’s Guide
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P-660R-F1 Series User’s Guide
163
C
HAPTER
13
Remote Management Configuration
This chapter provides information on configuring remote management.
13.1
Remote Management Overview
Remote management allows you to determine which services/protocols can access which ZyXEL
Device interface (if any) from which computers.
You may manage your ZyXEL Device from a remote location via:
•
Internet (WAN only)
•
ALL (LAN and WAN)
•
LAN only,
•
Neither (Disable).
To disable remote management of a service, select
Disable
in the corresponding
Access Status
field.
You may only have one remote management session running at a time. The ZyXEL Device
automatically disconnects a remote management session of lower priority when another remote
management session of higher priority starts. The priorities for the different types of remote
management sessions are as follows.
1
Telnet
2
HTTP
13.1.1
Remote Management Limitations
Remote management over LAN or WAN will not work when:
•
You have disabled that service in one of the remote management screens.
•
The IP address in the
Secured Client IP
field does not match the client IP address. If it does not
match, the ZyXEL Device will disconnect the session immediately.
•
There is already another remote management session with an equal or higher priority running.
You may only have one remote management session running at one time.
•
There is a firewall rule that blocks it.
13.1.2
Remote Management and NAT
When NAT is enabled:
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Chapter 13 Remote Management Configuration
P-660R-F1 Series User’s Guide
164
•
Use the ZyXEL Device’s WAN IP address when configuring from the WAN.
•
Use the ZyXEL Device’s LAN IP address when configuring from the LAN.
13.1.3
System Timeout
There is a default system management idle timeout of five minutes (three hundred seconds). The
ZyXEL Device automatically logs you out if the management session remains idle for longer than
this timeout period. The management session does not time out when a statistics screen is polling.
13.2
The WWW Screen
To change your ZyXEL Device’s World Wide Web settings, click
Advanced > Remote MGMT
to
display the
WWW
screen.
13.2.1
WWW and HTTPS
HTTPS (HyperText Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web protocol
that encrypts and decrypts web pages. Secure Socket Layer (SSL) is an application-level protocol
that enables secure transactions of data by ensuring confidentiality (an unauthorized party cannot
read the transferred data), authentication (one party can identify the other party) and data
integrity (you know if data has been changed).
It relies upon certificates, public keys, and private keys.
HTTPS on the ZyXEL Device is used so that you may securely access the ZyXEL Device using the
web configurator. The SSL protocol specifies that the SSL server (the ZyXEL Device) must always
authenticate itself to the SSL client (the computer which requests the HTTPS connection with the
ZyXEL Device), whereas the SSL client only should authenticate itself when the SSL server requires
it to do so (select Authenticate Client Certificates in the
Remote MGMT
>
WWW
screen).
Authenticate Client Certificates is optional and if selected means the SSL-client must send the
ZyXEL Device a certificate. You must apply for a certificate for the browser from a CA that is a
trusted CA on the ZyXEL Device.
Please refer to the following figure.
1
HTTPS connection requests from an SSL-aware web browser go to port 443 (by default) on the
ZyXEL Device’s WS (web server).
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Chapter 13 Remote Management Configuration
P-660R-F1 Series User’s Guide
165
2
HTTP connection requests from a web browser go to port 80 (by default) on the ZyXEL Device’s WS
(web server).
Figure 97
HTTPS Implementation
Note: If you disable the WWW service in the Remote MGMT > WWW screen, then the
ZyXEL Device blocks all HTTP connection attempts.
Figure 98
Remote Management: WWW

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