131
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 transmission over the
