Zyxel X650 Router Manual PDF (Setup & Configuration Guide)

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directly before, try to do that again, and

check if you can get connected to the

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 provider and

check if there is something wrong with their

service.

f.

If you just cannot connect to one or more

website(s), 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.

i.

Try to use IP address instead of hostname. If

you can use IP address to communicate with

a remote server, but cannot use hostname,

please check DNS setting.

I cannot locate my

router by my wireless

client

a.

‘Broadcast ESSID’ set to off?

b.

Secure both antennas properly.

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 works

better after that.

d.

Try to know what computers do on your

local network. If someone is transferring

big files, other people will think the Internet

is really slow.

e.

If this has never happened before, call your

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Internet service provider to see if there is

something wrong with their network.

I cannot log onto web

management interface:

password is wrong

a.

Make sure you are connecting to the correct

IP address of the router!

b.

Password is case-sensitive. Make sure the

‘Caps Lock’ is not activated.

c.

If you forget the password, do a hard reset.

Router became hot

a.

This is not a malfunction if you can keep

your hand on the router’s case.

b.

If you smell something strange 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 is safe before you do this!),

and call your dealer of purchase for help.

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10.3 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 and 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:

DHCP

stands for

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 that identify 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 that can be represented as four cascaded decimal

numbers separated by “.” Example: aaa.aaa.aaa.aaa, where each “aaa” can be anything from

000 to 255, or as four cascaded binary numbers separated by “.” such as:

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

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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 direct IP packets to their destinations.

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:

ISP stands for Internet Service Provider. An ISP is a business that provides

connectivity to the Internet for individuals, businesses, or organizations.

LAN:

LAN stands for 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 correspond

to the Manufacturer ID (unique for each manufacturer) and 3 bytes that are often used as the

product’s serial number.

NAT:

NAT stands for Network Address Translation. This process allows all of the

computers on your home network to use a single IP address. Using the X650’s NAT

capability, you can access the Internet from multiple computers on your home network

without having to purchase additional IP addresses from your ISP.

Port:

Network clients (LAN PC) use port numbers to distinguish between different network

applications/protocols. Below is a list of common applications and protocols/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:

PPPoE stands for 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 and without any confusion or

misunderstandings.

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:

TCP/IP stands for Transmission Control Protocol/Internet Protocol (TCP/IP)

and UDP stands for Unreliable Datagram Protocol (UDP). TCP/IP is the standard protocol for

data transmission over the Internet. Both TCP and UDP are transport layer protocols. TCP

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