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Basic Network Configuration
28
Amazingly, all the address translation that occurs takes place automatically in order to make web browsing and other functions
easier. This is also a way for large web hosting services to speed up the network by having different devices perform different
functions.
IP ADDRESSES
If you do not know your IP Address, you can open a DOS screen in a Windows
®
- based environment and bring up the ipconfig
screen.
TABLE 2.
Packet Translation
Packet before Translation
Packet After Translation
Source
Destination
Source
Destination
IP Address
Port
Number
IP Address
Port
Number
IP Address
Port
Number
IP Address
Port
Number
To
Internet
10.2.100.1
1031
192.156.136.22
80
99.5.1.30
1032
192.156.136.22
80
From
Internet
192.156.136.22
80
99.5.1.30
1032
192.156.136.22
80
10.2.100.1
1031
TABLE 3.
Well-Known TCP Port Numbers
Port
Number
Description
1
TCP Port Service Multiplexer (TCPMUX)
5
Remote Job Entry (RJE)
7
ECHO
18
Message Send Protocol (MSP)
20
FTP-Data
21
FTP- Control
23
Telnet
25
Simple Mail Transfer Protocol (SMTP)
29
MSG ICP
37
Time
42
Host Name Server (Nameserv)
43
Whols
49
Login Host Protocol (Login)
53
Domain Name Server (DNS)
69
Trivial File Transfer Protocol (TFTP)
70
Gopher Service
79
Finger
80
HTTP
103
X.400 Standard
108
SNA Gateway Access Server
109
POP2
110
POP3
115
Simple File Transfer Protocol
118
SQL Services
119
Newsgroup (NNTP)
137
NetBIOS Name Service
139
NetBIOS Datagram Service
143
Interim Mail Access Protocol (IMAP)
150
NetBIOS Session Service
156
SQL Server
161
SNMP
179
Border Gateway Protocol (BGP)
190
Gateway Access Control Protocol (GACP)
194
Internet Relay Chat (IRC)
197
Directory Location Services (DLS)
389
Lightweight Directory Access Protocol (LDAP)
396
Novell Netware over IP
443
HTTPS
444
Simple Network Paging Protocol (SNPP)
445
Microsoft-DS
458
Apple Quick Time
546
DHCP Client
547
DHCP Server
563
SNEWS
569
MSN
1080
Socks
TABLE 3.
Well-Known TCP Port Numbers
Port
Number
Description
Содержание KP-12
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