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Page 96 / 110 Scroll up to view Page 91 - 95
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
95
Dynamic DNS
The Dynamic DNS function allows you to alias a dynamic IP address to a static hostname, allowing
users whose ISP does not assign them a static IP address to use a domain name. This is especially
useful for hosting servers via your ADSL connection, so that anyone wishing to connect to you may use
your domain name, rather than having to use your dynamic IP address, which changes from time to
time. This dynamic IP address is the WAN IP address of the router, which is assigned to you by your
ISP.
You will first need to register and establish an account with the Dynamic DNS provider using their
website, for example http://www.dyndns.org/
There are more than 5 DDNS services supported.
±
Disable:
Check to disable the Dynamic DNS function.
±
Enable:
Check to enable the Dynamic DNS function. The following fields will be activated and
required:
Dynamic DNS Server:
Select the DDNS service you have established an account with.
Domain Name, Username and Password:
Enter your registered domain name and your username and
password for this service.
Period:
Set the time period between updates, for the Router to exchange information with the DDNS
server. In addition to updating periodically as per your settings, the router will perform an update when
your dynamic IP address changes.
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TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
96
Check Email
This function allows you to have the router check your POP3 mailbox for new Email messages. The
Mail
LED on your router will light when it detects new messages waiting for download. You may also view the
status of this function using the
Status – Email Checking
section of the web interface, which also
provides details on the number of new messages waiting. See the
Status
section of this manual for
more information.
Check Email:
±
Disable:
Check to disable the router’s Email checking function.
±
Enable:
Check to enable the routers Emailing checking function. The following fields will be
activated and required:
Account Name:
Enter the name (login) of the POP3 account you wish to check.. Normally, it is the text
in your email address before the "@" symbol. If you have trouble with it, please contact your ISP.
Password:
Enter the account’s password.
POP3 Mail Server:
Enter your (POP) mail server name. You Internet Service Provider (ISP) or network
administrator will be able to supply you with this.
Period:
Enter the value in minutes between periodic mail checks.
Automatically dial-out for checking emails:
When the function is enabled, your ADSL router will
connect to your ISP automatically to check emails if your Internet connection dropped. Please be careful
when using this feature if your ADSL service is charged by time online.
Page 98 / 110
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
97
Device Management
The Device Management advanced configuration settings allow you to control your router’s security
options and device monitoring features.
Embedded Web Server ( 2 Management IP Accounts)
HTTP Port:
This is the port number the router’s embedded web server (for web-based configuration) will
use. The default value is the standard HTTP port, 80. Users may specify an alternative if, for example,
they are running a web server on a PC within their LAN.
Management IP Address:
You may specify an IP address allowed to logon and access the router’s web
server. Setting the IP address to 0.0.0.0 will disable IP address restrictions, allowing users to login from
any IP address.
Expire to auto-logout:
Specify a time frame for the system to auto-logout the user’s configuration
session.
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TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
98
For Example:
User A changes HTTP port number to
100
, specifies their own IP address of
192.168.0.55
, and sets the logout time to be
100
seconds.
The router will only allow User A access from
the IP address
192.168.0.55
to logon to the Web GUI by typing:
http://
192.168.0.254:100
in their web
browser. After 100 seconds, the device will automatically logout User A.
Universal Plug and Play (UPnP)
UPnP offers peer-to-peer network connectivity for PCs and other network devices, along with control
and data transfer between devices. UPnP offers many advantages for users running NAT routers
through UPnP NAT Traversal, and on supported systems makes tasks such as port forwarding much
easier by letting the application control the required settings, removing the need for the user to control
advanced configuration of their device.
Both the user’s Operating System and the relevant application must support UPnP in addition to the
router. Windows XP and Windows Me natively support UPnP (when the component is installed), and
Windows 98 users may install the Internet Connection Sharing client from Windows XP in order to
support UPnP. Windows 2000 does not support UPnP.
±
Disable:
Check to disable the router’s UPnP functionality.
±
Enable:
Check to enable the router’s UPnP functionality.
UPnP Port:
Its default setting is 2800. It is highly recommended for users to use this port value. If this
value conflicts with other ports already being used you may wish to change the port.
SNMP Access Control
(Software on a PC within the LAN is required in order to utilize this function) –
Simple Network Management Protocol.
SNMP V1 and V2:
Read Community:
Specify a name to be identified as the Read Community, and an IP address.
This
community string will be checked against the string entered in the configuration file. Once the string
name is matched, user obtains this IP address will be able to view the data.
Write Community:
Specify a name to be identified as the Write Community, and an IP address. This
community string will be checked against the string entered in the configuration file. Once the string
name is matched, users from this IP address will be able to view and modify the data.
Trap Community:
Specify a name to be identified as the Trap Community, and an IP address. This
community string will be checked against the string entered in the configuration file. Once the string
name is matched, users from this IP address will be sent SNMP Traps.
SNMP V3:
Specify a name and password for authentication. And define the access right from identified IP address.
Once the authentication has succeeded, users from this IP address will be able to view and modify the
data.
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Chapter 4: Configuration
99
SNMP Version: SNMPv2c and SNMPv3
SNMPv2c is the combination of the enhanced protocol features of SNMPv2 without the SNMPv2
security. The "c" comes from the fact that SNMPv2c uses the SNMPv1 community string paradigm for
"security", but is widely accepted as the SNMPv2 standard.
SNMPv3 is a strong authentication mechanism, authorization with fine granularity for remote monitoring.
Traps supported: Cold Start, Authentication Failure.
The following MIBs are supported:
From RFC 1213 (MIB-II):
±
System group
±
Interfaces group
±
Address Translation group
±
IP group
±
ICMP group
±
TCP group
±
UDP group
²
EGP (not applicable)
±
Transmission
±
SNMP group
From RFC1650 (EtherLike-MIB):
±
dot3Stats
From RFC 1493 (Bridge MIB):
±
dot1dBase group
±
dot1dTp group
±
dot1dStp group (if configured as spanning tree)
From RFC 1471 (PPP/LCP MIB):
±
pppLink group
²
pppLqr group

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