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check if you can get connected to Internet
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 three 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.
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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
management interface:
password is wrong
a.
Make sure you’re connecting to the correct
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.
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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: 192.168.2.1. 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 “.”:
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bbbbbbbb.bbbbbbbb.bbbbbbbb.bbbbbbbb, where each “b” can either be 0 or 1.
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,
11011001.10110000.10010000.00000111, and if its network mask is,
11111111.11111111.11110000.00000000
It means the device’s network address is
11011001.10110000.10010000.00000000, 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 ISP's 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.
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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:
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.

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