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Page 6 / 77 Scroll up to view Page 1 - 5
4.6.3
RIP Settings
.......................................................................................................................
35
4.7
Forwarding
....................................................................................................................
36
4.7.1
Virtual Servers
....................................................................................................................
36
4.7.2
Port Triggering
...................................................................................................................
37
4.7.3
DMZ
...................................................................................................................................
39
4.7.4
UPnP
..................................................................................................................................
40
4.8
Parent Control
...............................................................................................................
40
4.9
Firewall
.........................................................................................................................
42
4.9.1
Rule
....................................................................................................................................
42
4.9.2
LAN Host
............................................................................................................................
43
4.9.3
WAN Host
..........................................................................................................................
44
4.9.4
Schedule
............................................................................................................................
45
4.9.5
DDoS
..................................................................................................................................
46
4.10
Bandwidth Control
........................................................................................................
48
4.11
IP&MAC Binding
...........................................................................................................
49
4.11.1
Binding Settings
................................................................................................................
49
4.11.2
ARP List
............................................................................................................................
50
4.12
Dynamic DNS
...............................................................................................................
51
4.13
Diagnostic
.....................................................................................................................
51
4.14
System Tools
................................................................................................................
52
4.14.1
System Log
.......................................................................................................................
52
4.14.2
Time Settings
....................................................................................................................
53
4.14.3
Manage Control
................................................................................................................
54
4.14.4
CWMP Settings
................................................................................................................
55
4.14.5
SNMP Settings
.................................................................................................................
56
4.14.6
Backup & Restore
.............................................................................................................
57
4.14.7
Factory Defaults
................................................................................................................
57
4.14.8
Firmware Upgrade
............................................................................................................
58
4.14.9
Reboot
..............................................................................................................................
59
4.14.10
Statistics
........................................................................................................................
59
Appendix A: Specifications
...................................................................................
61
Appendix B: Troubleshooting
...............................................................................
62
Appendix C: Technical Support
............................................................................
71
Page 7 / 77
TD-8840T
ADSL2+ Modem Router User Guide
1
Package Contents
The following contents should be found in your package:
¾
One TD-8840T ADSL2+ Modem Router
¾
One Power Adapter for TD-8840T ADSL2+ Modem Router
¾
Quick Installation Guide
¾
One RJ45 cable
¾
Two RJ11 cables
¾
One ADSL splitter
¾
One Resource CD for TD-8840T ADSL2+ Modem Router, including:
•
This User Guide
•
Other Helpful Information
)
Note:
Make sure that the package contains the above items. If any of the listed items are damaged or
missing, please contact your distributor.
Page 8 / 77
TD-8840T
ADSL2+ Modem Router User Guide
2
Chapter 1. Product Overview
Thank you for choosing the
TD-8840T ADSL2+ Modem Router
.
1.1 Overview of the Modem Router
The device is designed to provide a simple and cost-effective ADSL Internet connection for a
private Ethernet network.
The TD-8840T ADSL2+ Modem Router connects to an Ethernet LAN or computers via standard
Ethernet ports. The ADSL connection is made using ordinary telephone line with standard
connectors. Multiple workstations can be networked and connected to the Internet using a single
Wide Area Network (WAN) interface and single global IP address. The advanced security
enhancements,
IP
/
MAC Filter
,
Application Filter
and
URL Filter
can help to protect your
network from potentially devastating intrusions by malicious agents from the outside of your
network.
Quick Start
of the Web-based Utility is supplied and friendly help messages are provided for the
configuration. Network and Router management is done through the Web-based Utility which can
be accessed through local Ethernet using any web browser.
ADSL
The TD-8840T ADSL2+ Modem Router supports full-rate ADSL2+ connectivity conforming to the
ITU and ANSI specifications. In addition to the basic DMT physical layer functions, the ADSL2+
PHY supports dual latency ADSL2+ framing (fast and interleaved) and the I.432 ATM Physical
Layer.
Page 9 / 77
TD-8840T
ADSL2+ Modem Router User Guide
3
1.2 Main Features
¾
4 10/100M RJ45 LAN ports (Auto MDI/MDIX), 1 RJ11 port.
¾
Downstream data rates up to 24Mbps, upstream data rates up to 3.5Mbps
（
With Annex M
enabled
）
.
¾
Supports long transfers, the max line length can reach to 6.5Km.
¾
Supports remote configuration and management through SNMP
and CWMP.
¾
Supports PPPoE, it allows connecting the internet on demand and disconnecting from the
Internet when idle.
¾
Quick response semi-conductive surge protection circuit, provides reliable ESD and
surge-protect function.
¾
High speed and asymmetrical data transmit mode, provides safe and exclusive bandwidth.
¾
Supports All ADSL industrial standards.
¾
Compatible with all mainstreams DSLAM (CO).
¾
Provides integrated access of internet and route function which face to SOHO user.
¾
Real-time Configuration and device monitoring.
¾
Supports Multiple PVC (Permanent Virtual Circuit).
¾
Built-in DHCP server.
¾
Built-in firewall, supports IP/MAC filter, Application filter and URL filter.
¾
Supports Virtual Server, DMZ host and IP Address Mapping.
¾
Supports Dynamic DNS, UPnP and Static Routing.
¾
Supports system log and flow Statistics.
¾
Supports firmware upgrade and Web management.
Page 10 / 77
TD-8840T
ADSL2+ Modem Router User Guide
4
1.3 Panel Layout
1.3.1 The Front Panel
Figure 1-1
The Router’s LEDs are located on the front panel (View from left to right). They indicate the
device’s working status. For details, please refer to LED Explanation.
LED Explanation:
Name
Status
Indication
On
Power is on.
Power
Off
Power is off.
On
The ADSL port is linked up.
Flash
The ADSL negotiation is in progress.
ADSL
Off
The ADSL port is linked down.
On
A successful PPP connection has been built.
Flash
Data is being transferred over the Internet.
Internet
Off
There is no successful PPP connection or the Router works
on Bridge mode.
On
There is a successful connection on the corresponding 1~4
(LAN) port but no activity.
Off
There is no connection on the corresponding 1~4 (LAN) port
or the connection is abnormal.
1~4 (LAN)
Flash
Data is being transferred over the 1~4 (LAN) port
1.3.2 The Back Panel
The Router's ports, where the cables are connected, and RESET button are located on the back
Figure 1-2

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