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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
websites, 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 (modem) provided by your
Internet service provider.
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, be 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 has never happened before, call your
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 forgot the password, do a hard
reset.
Router becomes hot
a.
This is not a malfunction, as long as it is not
so hot that you cannot touch it for a
prolonged period of time
b.
If you smell something wrong or see 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: 192.168.1.2. 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 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.
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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