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Chapter 16 Remote Management
NBG4604 User’s Guide
161
octets in a MAC address and uniquely identifies the manufacturer of a network
device.
STUN
STUN allows a device to find the public IP address assigned by a NAT router and/
or a firewall between it and the public Internet.
16.9
ACS Screen
The ACS screen allows you to set up the ACS server information on your NBG4604
so it can be remotely updated. Only use information provided by your network
administrator. You can also upload encrypted security certificates to your
NBG4604.
16.9.1
STUN
STUN (Simple Traversal of User Datagram Protocol (UDP) through Network
Address Translators) allows the NBG4604 to find the presence and types of NAT
routers and/or firewalls between it and the public Internet. STUN also allows the
NBG4604 to find the public IP address that NAT assigned. STUN does not work
with symmetric NAT routers or firewalls. See RFC 3489 for details on STUN.
The following figure shows how STUN works.
1
The NBG4604 (A) sends packets to the STUN server (B).
2
The STUN server (B) finds the public IP address and port number that the NAT
router used on the NBG4604’s packets and sends them to the NBG4604.
3
The NBG4604 uses the public IP address and port number in the packets that it
sends to the server (C).
Figure 95
STUN
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Click
Management > Remote MGMT > ACS
to open this screen.
Figure 96
Management > Remote MGMT > ACS
The following table describes the labels in this screen.
Table 66
Management > Remote MGMT > ACS
LABEL
DESCRIPTION
ACS Server Setup
URL
Enter the URL of the ACS server.
Account Name
Enter the login name used by the NBG4604 to log into the ACS
server.
Password
Enter the password for the account used to log into the ACS
server.
Period
Enter the duration in seconds over which the NBG4604
attempts to log into the ACS server.
Device Configuration
Manufacturer
This displays the manufacturer name of the NBG4604, ‘ZyXEL’,
and cannot be edited.
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Chapter 16 Remote Management
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163
Manufacturer Oui
Enter the manufacturer organizational unit identifier. This
number must consist of a 3-octet MAC address.
Product Class
Enter the product class if this was provided by the network
adminstrator. Otherwise, leave it at its default setting.
Model Name
This displays the model name. In this case, it is ‘NBG4604’ and
cannot be edited.
Device Connection Request
Username
Enter the username required for the ACS server to connect
directly to the NBG4604.
Password
Enter the password required for the ACS server to connect
directly to the NBG4604.
Device Connection Request
STUN Server
Enter the URL of the STUN server.
STUN Username
Enter the username required to log into the STUN server.
STUN Password
Enter the password of the username used to log into the STUN
server.
Logs
Backup
Click
Backup
to save a copy of the NBG4604’s ACS activity.
Clear Logs
Click
Clear
Logs to delete the files containing a record of the
NBG4604’s ACS activity.
Upload Certificate
File Path
Enter the path of the certificate file’s location on your local
computer, or click the
Browse
button to open a browse dialog
box to search for it.
CA Certificate
Click
Upload
to copy the certicate listed in File Path to the
NBG4604. Click
Clear
to remove the current CA Certificate
from the device.
Client Certificate
Click
Upload
to copy the certicate listed in File Path to the
NBG4604. Click
Clear
to remove the current Client Certificate
from the device.
Client Key
Click
Upload
to copy the certicate listed in File Path to the
NBG4604. Click
Clear Key
to remove the current CA
Certificate from the device.
Apply
Click
Apply
to save the setting to the NBG4604.
Reset
Click
Reset
to begin configuring this screen afresh.
Table 66
Management > Remote MGMT > ACS (continued)
LABEL
DESCRIPTION
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16.10
Technical Reference
TR-069 is an abbreviation of “Technical Reference 069”, a protocol designed to
facilitate the remote management of Customer Premise Equipement (CPE), such
as the NBG4604. It can be managed over a WAN by means of an Auto
Configuration Server (ACS). TR-069 is based on sending Remote Procedure Calls
(RPCs) between the ACS and the client device. RPCs are sent in Extensible Markup
Language (XML) format over HTTP or HTTPS.
Figure 97
TR-069 Example
In this example, the NBG4604 receives data from at least 2 sources: an HTTP
server for handling web services and an ACS, for configuring the NBG4604
remotely. All three servers are owned and operated by the client’s Internet Service
Provider. However, without the configuration settings from the ACS, the NBG4604
cannot access the other server. Once the NBG4604 receives its configuration
settings and implements them, it can connect to the other server. If the settings
change, it will once again be unable to connect until it receives its updates from
the ACS.
The NBG4604 can be configured to periodically check for updates from the auto-
configuration server so that the end user need not be worried about it.
ACS
HTTP
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165
C
HAPTER
17
Universal Plug-and-Play (UPnP)
17.1
Overview
This chapter introduces the UPnP feature in the Web Configurator.
Universal Plug and Play (UPnP) is a distributed, open networking standard that
uses TCP/IP for simple peer-to-peer network connectivity between devices. A
UPnP device can dynamically join a network, obtain an IP address, convey its
capabilities and learn about other devices on the network. In turn, a device can
leave a network smoothly and automatically when it is no longer in use.
17.2
What You Can Do
Use the
UPnP
screen (
Section 17.4 on page 166
) to enable UPnP on the
NBG4604.
17.3
What You Need to Know
How do I know if I'm using UPnP?
UPnP hardware is identified as an icon in the Network Connections folder
(Windows XP). Each UPnP compatible device installed on your network will appear
as a separate icon. Selecting the icon of a UPnP device will allow you to access the
information and properties of that device.
NAT Traversal
UPnP NAT traversal automates the process of allowing an application to operate
through NAT. UPnP network devices can automatically configure network
addressing, announce their presence in the network to other UPnP devices and
enable exchange of simple product and service descriptions. NAT traversal allows
the following:

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