DG-WA30002NP User Manual
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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 communication 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.
ACCESS POINT: An Access Point 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).
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