160
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.
