Getnet Router GR-724W User Manual

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with your computer directly attached to the 
device provided by your Internet service 
provider. 
d. Check PPPoE / L2TP / PPTP user ID and 
password again. 
e. Call your Internet service provide and check 
if there’s something wrong with their 
service. 
f. If you just can’t connect to one or more 
website, but you can still use other internet 
services, please check URL/Keyword filter. 
g. Try to reset the router and try again later. 
h. Reset the device provided by your Internet 
service provider too. 
i. Try to use IP address instead of hostname. If 
you can use IP address to communicate with 
a remote server, but can’t use hostname, 
please check DNS setting. 
I can’t locate my 
router by my wireless 
client a. ‘Broadcast ESSID’ set to off? 
b. All two antennas are properly secured. 
c. Are you too far from your router? Try to get 
closer. 
d. Please remember that you have to input 
ESSID on your wireless client manually, if 
ESSID broadcast is disabled. 
File download is very 
slow or breaks 
frequently a. Are you using QoS function? Try to disable 
it and try again. 
b. Internet is slow sometimes, being patient. 
c. Try to reset the router and see if it’s better 
after that. 
d. Try to know what computers do on your 
local network. If someone’s transferring big 
files, other people will think Internet is 
really slow. 
e. If this never happens before, call you 
Internet service provider to know if there is 
something wrong with their network. 
I can’t log onto web  a. Make sure you’re connecting to the correct  
						

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management interface: 
password is wrong IP address of the router! 
b. Password is case-sensitive. Make sure the 
‘Caps Lock’ light is not illuminated. 
c. If you really forget the password, do a hard 
reset. 
Router become hot  a. This is not a malfunction, if you can keep 
your hand on the router’s case. 
b. If you smell something wrong or see the 
smoke coming out from router or A/C 
power adapter, please disconnect the router 
and A/C power adapter from utility power 
(make sure it’s safe before you’re doing 
this!), and call your dealer of purchase for 
help. 
The date and time of 
all event logs are 
wrong a. Adjust the internal clock of router. 
 
  
						

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4-3 Glossary 
 
 
Default Gateway (Router): Every non-router IP device needs to configure a default 
gateway’s IP address. When the device sends out an IP packet, if the destination is not 
on the same network, the device has to send the packet to its default gateway, which 
will then send it out towards the destination. 
DHCP: Dynamic Host Configuration Protocol. This protocol automatically gives 
every computer on your home network an IP address. 
DNS Server IP Address: DNS stands for Domain Name System, which allows 
Internet servers to have a domain name (such as www.Broadbandrouter.com) and one 
or more IP addresses (such as 192.34.45.8). A DNS server keeps a database of 
Internet servers and their respective domain names and IP addresses, so that when a 
domain name is requested (as in typing Broadbandrouter.com into your Internet 
browser), the user is sent to the proper IP address. The DNS server IP address used by 
the computers on your home network is the location of the DNS server your ISP has 
assigned to you.  
DSL Modem: DSL stands for Digital Subscriber Line. A DSL modem uses your 
existing phone lines to transmit data at high speeds.  
Ethernet: A standard for computer networks. Ethernet networks are connected by 
special cables and hubs, and move data around at up to 10/100 million bits per second 
(Mbps).  
Idle Timeout: Idle Timeout is designed so that after there is no traffic to the Internet 
for a pre-configured amount of time, the connection will automatically be 
disconnected. 
 
IP Address and Network (Subnet) Mask: IP stands for Internet Protocol. An IP 
address consists of a series of four numbers separated by periods, which identifies a 
single, unique Internet computer host in an IP network. Example: 192.168.1.1. It 
consists of 2 portions: the IP network address, and the host identifier. 
 
The IP address is a 32-bit binary pattern, which can be represented as four cascaded 
decimal numbers separated by “.”: aaa.aaa.aaa.aaa, where each “aaa” can be anything 
from 000 to 255, or as four cascaded binary numbers separated by “.”: 
bbbbbbbb.bbbbbbbb.bbbbbbbb.bbbbbbbb, where each “b” can either be 0 or 1.  
						

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A network mask is also a 32-bit binary pattern, and consists of consecutive leading 
1’s followed by consecutive trailing 0’s, such as 
11111111.11111111.11111111.00000000. Therefore sometimes a network mask can 
also be described simply as “x” number of leading 1’s. 
When both are represented side by side in their binary forms, all bits in the IP address 
that correspond to 1’s in the network mask become part of the IP network address, and 
the remaining bits correspond to the host ID.   
 
For example, if the IP address for a device is, in its binary form, 
11011001.10110000.1001
0000.00000111, and if its network mask is, 
11111111.11111111.11110000.00000000 
It means the device’s network address is   
11011001.10110000.1001
0000.00000000, and its host ID is, 
00000000.00000000.00000000.00000111
. This is a convenient and efficient method 
for routers to route IP packets to their destination. 
ISP Gateway Address: (see ISP for definition). The ISP Gateway Address is an IP 
address for the Internet router located at the ISPs office.   
ISP: Internet Service Provider. An ISP is a business that provides connectivity to the 
Internet for individuals and other businesses or organizations.  
LAN: Local Area Network. A LAN is a group of computers and devices connected 
together in a relatively small area (such as a house or an office). Your home network 
is considered a LAN.  
MAC Address: MAC stands for Media Access Control. A MAC address is the 
hardware address of a device connected to a network. The MAC address is a unique 
identifier for a device with an Ethernet interface. It is comprised of two parts: 3 bytes 
of data that corresponds to the Manufacturer ID (unique for each manufacturer), plus 
3 bytes that are often used as the product’s serial number. 
NAT: Network Address Translation. This process allows all of the computers on your 
home network to use one IP address. Using the broadband router’s NAT capability, 
you can access the Internet from any computer on your home network without having 
to purchase more IP addresses from your ISP.   
Port: Network Clients (LAN PC) uses port numbers to distinguish one network 
application/protocol over another. Below is a list of common applications and 
protocol/port numbers:  
						

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Application Protocol Port Number
Telnet TCP 23 
FTP TCP 21 
SMTP TCP 25 
POP3 TCP 110 
H.323 TCP 1720 
SNMP UCP 161 
SNMP Trap  UDP  162 
HTTP TCP 80 
PPTP TCP 1723 
PC Anywhere  TCP  5631 
PC Anywhere  UDP  5632 
 
 
PPPoE: Point-to-Point Protocol over Ethernet. Point-to-Point Protocol is a secure 
data transmission method originally created for dial-up connections; PPPoE is for 
Ethernet connections. PPPoE relies on two widely accepted standards, Ethernet and 
the Point-to-Point Protocol. It is a communications protocol for transmitting 
information over Ethernet between different manufacturers 
 
Protocol: A protocol is a set of rules for interaction agreed upon between multiple 
parties so that when they interface with each other based on such a protocol, the 
interpretation of their behavior is well defined and can be made objectively, without 
confusion or misunderstanding.   
 
Router: A router is an intelligent network device that forwards packets between 
different networks based on network layer address information such as IP addresses. 
Subnet Mask: A subnet mask, which may be a part of the TCP/IP information 
provided by your ISP, is a set of four numbers (e.g. 255.255.255.0) configured like an 
IP address. It is used to create IP address numbers used only within a particular 
network (as opposed to valid IP address numbers recognized by the Internet, which 
must be assigned by InterNIC).   
TCP/IP, UDP: Transmission Control Protocol/Internet Protocol (TCP/IP) and 
Unreliable Datagram Protocol (UDP). TCP/IP is the standard protocol for data  
						

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transmission over the Internet. Both TCP and UDP are transport layer protocol. TCP 
performs proper error detection and error recovery, and thus is reliable. UDP on the 
other hand is not reliable. They both run on top of the IP (Internet Protocol), a 
network layer protocol. 
 
WAN: Wide Area Network. A network that connects computers located in 
geographically separate areas (e.g. different buildings, cities, countries). The Internet 
is a wide area network. 
 
Web-based management Graphical User Interface (GUI): Many devices support a 
graphical user interface that is based on the web browser. This means the user can use 
the familiar Netscape or Microsoft Internet Explorer to Control/configure or monitor 
the device being managed.  
						

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