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Airlink101 AR580W3G User Manual

Page 133

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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.

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.