135
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 between multiple
parties so that when they communication 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 Internet. Both TCP and UDP are transport layer protocol.
TCP performs proper error detection and error recovery, and thus is reliable.
UDP on the other hand is not reliable. They both run on top of the IP (Internet
Protocol), a network layer protocol.
WAN:
Stands for Wide Area Network. A network that connects computers
located in geographically separated areas (e.g. different buildings, cities,
