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4
Firewall
NAT technology supports simple firewalls and provides options for blocking access from the
Internet, like Telnet, FTP, TFTP, WEB, SNMP and IGMP.
Domain Name System Relay
Domain Name System (DNS) relay provides an easy way to map a domain name with a
user-friendly name such as www.yahoo.com with an IP address. When a local machine sets
its DNS server to the router’s IP address, every DNS conversion request packet from the PC
to this router is forwarded to the real DNS on the outside network.
Dynamic Domain Name System (DDNS)
The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname.
This dynamic IP address is the WAN IP address. To use the service, you must first apply for
an account from a DDNS service such as http://www.dyndns.org/.
PPP over Ethernet (PPPoE)
The router provides an embedded PPPoE client function to establish a connection. You get
greater access speed without changing the operation concept, while sharing the same ISP
account and paying for one access account. No PPPoE client software is required for the
local computer. Automatic Reconnect and Disconnect Timeout (Idle Timer) functions are
also provided.
Quality of Service (QoS)
QoS gives you full control over which types of outgoing data traffic should be given priority
by the router, ensuring important data like gaming packets, customer information, or
management information move through the router ay lightning speed, even under heavy
load. The QoS features are configurable by source IP address, destination IP address,
protocol, and port. You can throttle the speed at which different types of outgoing data pass
through the router, to ensure P2P users don’t saturate upload bandwidth, or office browsing
doesn’t bring client web serving to a halt. In addition, or alternatively, you can simply change
the priority of different types of upload data and let the router sort out the actual speeds.
Virtual Server:
You can specify which services are visible to outside users. The router detects an incoming
service request and forwards it to the specific local computer for handling. For example, you
can assign a PC in a LAN to act as a Web server inside and expose it to the outside network.
Outside users can browse inside the web server directly while it is protected by NAT. A DMZ
host setting is also provided for local computers exposed to the outside Internet network.
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5
Dynamic Host Configuration Protocol (DHCP) Client and Server
On a WAN site, the DHCP client obtains an IP address from the Internet Service Provider
(ISP) automatically. On a LAN site, the DHCP server allocates a range of client IP
addresses, including subnet masks and DNS IP addresses and distributes them to local
computers. This provides an easy way to manage the local IP network.
Rich Packet Filtering
This feature filters the packet based on IP addresses as well as Port numbers. Filtering
packets to and from the Internet provides a higher level of security control.
Static and RIP1/2 Routing
An easy static routing table or RIP1/2 routing protocol supports routing capability.
Simple Network Management Protocol (SNMP)
SNMP allows convenient remote management of the router.
Web-based GUI
A web-based GUI offers easy configuration and management. User-friendly and with on-line
help, it also supports remote management capability for remote users to configure and
manage this product.
Firmware Upgradeable
You can upgrade the router with the latest firmware through its web-based GUI.
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6
Chapter 2
Product Overview
2.1 Important Notes
2.2 Package Contents
TW-EA510 v3 ADSL2+ Router
CD-ROM containing the online manual
RJ-11 ADSL/telephone Cable (1.8M)
Ethernet (CAT-5 LAN) Cable (2M Straight)
AC-DC power adapter (12V DC, 1A)
9
Place the router on a stable surface.
9
Only use the power adapter that comes with the package. Using
a different voltage rating power adaptor may damage the router.
Attention
9
Do not use the router in high humidity or high temperatures.
9
Do not use the same power source for the router as other
equipment.
9
Do not open or repair the case yourself.
If the router is too hot,
turn off the power immediately and have it repaired at a
qualified service center.
9
Avoid using this product and all accessories outdoors.
Warning
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7
2.3 The Front LEDs
LED
Description
1
PPP :
Steady glow when there is a PPPoA / PPPoE connection.
2
ADSL:
Lights when successfully connected to an ADSL DSLAM
(linesync).
3
LAN Port
1-4:
Steady glow when connected to an Ethernet device.
Glows green for 100Mbps; Orange for 10Mbps.
Blinking light when data is Transmitted / Received.
4
WLAN
Lit green when the wireless connection is established.
Flashes when sending/receiving data.
5
SYS :
Lights when the system is ready.
6
PWR :
Lights when the power is ON.
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8
2.4The Rear Ports
Port
Description
1
PWR
Connect the supplied power adapter to this jack.
2
RESET
After the router is powered on, press this recessed button using
the end of paper clip or other small pointed object to reset the
router or to restore it to factory default settings.
1. Recovery procedures for non-working routers (e.g. after a
failed firmware upgrade flash):
Hold the
Emergency/Failure Recovery Button
on the back of the
modem in. Keep this button held in and turn on the modem. Once
the lights on the modem have stopped flashing, release the
Emergency/Failure Recovery Button.
The modem's
emergency-reflash web interface will then be accessible via
http://192.168.0.254/ where you can upload a firmware image to
restore the modem to a functional state. Please note that the
modem will only respond via its web interface at this address,
and will not respond to ping requests from your PC or to telnet
connections.
2. Recovery procedures for a lost web interface password:
After turning the router on press the
Emergency/Failure
Recovery Button
on the back of the modem, and hold the button
in until all lights on the modem flash and it reboots with factory
default settings. The login will be reset to
admin
and the
password will be reset to
admin
, and the modem will be
accessible via its default IP address at http://192.168.0.254/
3
LAN
Connect a UTP Ethernet cable (Cat-5 or Cat-5e) to one of the
four LAN ports when connecting to a PC or an office/home
network of 10Mbps or 100Mbps.
4
LINE
Connect the supplied RJ-11 (telephone) cable to this port when
connecting to the ADSL/telephone network.
5
Power
Switch
Power ON/OFF switch.
5
2
1
3
4

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