Technical Specifications

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Appendix A

Technical Specifications

This appendix provides technical specifications for the Router.

Network Protocol and Standards Compatibility

Data and Routing Protocols:

TCP/IP, RIP-1, RIP-2, DHCP

PPP over Ethernet (PPPoE)

Power Adapter

North America:

120V, 60 Hz, input

United Kingdom, Australia:

240V, 50 Hz, input

Europe:

230V, 50 Hz, input

Japan:

100V, 50/60 Hz, input

All regions (output):

5 V DC @ 1 A output, 20W maximum

Physical Specifications

Dimensions:

28 x 175 x 118 mm

(1.1 x 6.89 x 4.65 in.)

Weight:

0.3 kg

(0.66 lb)

Environmental Specifications

Operating temperature:

0

°

to 40

°

C

(32º to 104º F)

Operating humidity:

90% maximum relative humidity, noncondensing

Electromagnetic Emissions

Meets requirements of:

FCC Part 15 Class B

VCCI Class B

EN 55 022 (CISPR 22), Class B

Interface Specifications

LAN:

10BASE-T or 100BASE-Tx, RJ-45

WAN:

10BASE-T, RJ-45

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Glossary

1

Glossary

Use the list below to find definitions for technical terms used in this manual.

List of Glossary Terms

802.11b

IEEE specification for wireless networking at 11 Mbps using direct-sequence spread-spectrum (DSSS)

technology and operating in the unlicensed radio spectrum at 2.5GHz.

802.11g

A soon to be ratified IEEE specification for wireless networking at 54 Mbps using direct-sequence

spread-spectrum (DSSS) technology and operating in the unlicensed radio spectrum at 2.5GHz. 802.11g is

backwards compatible with 802.11b.

Cat 5

Category 5

unshielded twisted pair (UTP) cabling. An Ethernet network operating at 10 Mbits/second

(10BASE-T) will often tolerate low quality cables, but at 100 Mbits/second (10BASE-Tx) the cable must be

rated as Category 5, or Cat 5 or Cat V, by the Electronic Industry Association (EIA).

This rating will be printed on the cable jacket. Cat 5 cable contains eight conductors, arranged in four

twisted pairs, and terminated with an RJ45 type connector. In addition, there are restrictions on maximum

cable length for both 10 and 100 Mbits/second networks.

DHCP

An Ethernet protocol specifying how a centralized DHCP server can assign network configuration

information to multiple DHCP clients. The assigned information includes IP addresses, DNS addresses, and

gateway (router) addresses.

DNS

Short for Domain Name System (or Service), an Internet service that translates domain names into IP

addresses.

Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on

IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the

corresponding IP address. For example, the domain name www.example.com might translate to

198.105.232.4. The DNS system is, in fact, its own network. If one DNS server doesn't know how to

translate a particular domain name, it asks another one, and so on, until the correct IP address is returned.

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Domain Name

A descriptive name for an address or group of addresses on the Internet. Domain names are of the form of a

registered entity name plus one of a number of predefined top level suffixes such as .com, .edu, .uk, etc. For

example, in the address mail.NETGEAR.com, mail is a server name and NETGEAR.com is the domain.

DSL

Short for digital subscriber line, but is commonly used in reference to the asymmetric version of this

technology (ADSL) that allows data to be sent over existing copper telephone lines at data rates of from 1.5

to 9 Mbps when receiving data (known as the downstream rate) and from 16 to 640 Kbps when sending data

(known as the upstream rate).

ADSL requires a special ADSL modem. ADSL is growing in popularity as more areas around the world

gain access.

Dynamic Host Configuration Protocol

DHCP. An Ethernet protocol specifying how a centralized DHCP server can assign network configuration

information to multiple DHCP clients. The assigned information includes IP addresses, DNS addresses, and

gateway (router) addresses.

Gateway

A local device, usually a router, that connects hosts on a local network to other networks.

IP

Internet Protocol is the main internetworking protocol used in the Internet. Used in conjunction with the

Transfer Control Protocol (TCP) to form TCP/IP.

IP Address

A four-byte number uniquely defining each host on the Internet, usually written in dotted-decimal notation

with periods separating the bytes (for example, 134.177.244.57).

Ranges of addresses are assigned by Internic, an organization formed for this purpose.

ISP

Internet service provider.

Internet Protocol

The main internetworking protocol used in the Internet. Used in conjunction with the Transfer Control

Protocol (TCP) to form TCP/IP.

local area network

LAN. A communications network serving users within a limited area, such as one floor of a building.

A LAN typically connects multiple personal computers and shared network devices such as storage and

printers. Although many technologies exist to implement a LAN, Ethernet is the most common for

connecting personal computers.

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MAC address

The Media Access Control address is a unique 48-bit hardware address assigned to every network interface

card. Usually written in the form 01:23:45:67:89:ab.

Mbps

Megabits per second.

Point-to-Point Protocol

PPP. A protocol allowing a computer using TCP/IP to connect directly to the Internet.

PPPoA

PPPoA. PPP over ATM is a protocol for connecting remote hosts to the Internet over an always-on

connection by simulating a dial-up connection.

PPPoE

PPPoE. PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an always-on

connection by simulating a dial-up connection.

PPP over ATM

PPPoA. PPP over ATM is a protocol for connecting remote hosts to the Internet over an always-on

connection by simulating a dial-up connection.

PPTP

Point-to-Point Tunneling Protocol. A method for establishing a virtual private network (VPN) by embedding

Microsoft’s network protocol into Internet packets.

router

A device that forwards data between networks. An IP router forwards data based on IP source and

destination addresses.

SSID

A Service Set Identification is a thirty-two character (maximum) alphanumeric key identifying a wireless

local area network. For the wireless devices in a network to communicate with each other, all devices must

be configured with the same SSID.

This is typically the configuration parameter for a wireless PC card. It corresponds to the ESSID in the

wireless Access Point and to the wireless network name.

See also

Wireless Network Name and ESSID.

Subnet Mask

A mask used to determine what subnet an IP address belongs to. Subnetting enables a network administrator

to further divide an IP address into two or more subnets.

An IP address has two components, the network address and the host address. For example, consider the IP

address 150.215.017.009. Assuming this is part of a Class B network, the first two numbers (150.215)

represent the Class B network address, and the second two numbers (017.009) identify a particular host on

this network.