PowerPoint Template

1
???????????????????

• ??. ??????? ????????????????

2
??????????????????????

• ????????????????????? (Local Area Network LAN)
• ??????????????????????????????????????????????????
  ????????? ????????????????????????????????????????
  ??????????????? ???? ??????????????????
  ???????????????? ???????????????????????

3
??????????????????????

• ??????????????????????? (Metropolitan Area
  Network MAN)
• ??????????????????????????????????????????????????
  ?????????????????????????????? ???????????????????
  ???????????? ???????????????????????? ????
  ???????????????????????????? A-FAR ??? U-FAR
  ??????????????????????????????????????????????????
  ????????????????

4
??????????????????????

• ???????????????????????? (Wide Area Network WAN)
• ?????????????????????????????????????????????
  ?????????????????????????????????????????????????
  ??????????? ??????????????? (Media)
  ?????????????????????????????? ???????????????????
  ???????? (?????????????? Dial-up line/??????????
  Leased line/ISDN/ADSL ????????????????????????????
  ????????????????)

5
????????????????????

• ??????????? 3 ???? ???
• ???????????? Host-Terminal
• ????????????????????????????????? ? ????
  ?????????? ????????? ??????? ?????????????????????
  ?????????????????? Host ????????????????????????
  ??????????? ? ???????? Terminal
  ????????????????????????????? (Mainframe) ,
  ??????????????????? (Super Computer)
  ???????????????????????????? UNIX ???? SUN
  Solaris, IBM-AIX, HP-UX ???????

6
????????????????????

• ???????????? Client/Server
• ???????????????????????????????????????????
  Host-Terminal ????????????????????????????????????
  ???????????????? Client/Server
  ??????????????????????????? ??????????????????????
  ???????? ?????????????????????????????????????????
  ?? ? ??????????????????????????????????? ????
  Windows Server 2003, Linux Server, FreeBSD ???????

7
????????????????????

• ???????????? Peer-to-Peer
• ???????????????????????????????????????????????
  ?????????????????????? ???? Workgroup
  ??????????????????????????????????????????????????
  ????????????????????????? ????????????????????????
  ????????????? ????????????????????????????????????
  ????? ???????????????????????????????
  ???????????????????

8
??????? OSI (Open System Interconnection)

• ???????? 7 ???? ??????
• 1. ??????????? (Physical Layer)
• ??????????????????????????????????????????????????
  ??????????? ??????????????????????????????????????
  ????????????? ? ??????????????? ???? ??? UTP, ???
  (Hub) , ?????????? (Repeater)
• 2. ????????????????? (Data Link Layer)
• ?????????????????????????????????????? (Media)
  ??????????????????? (Frame) ??????????????????????
  ??? 3 ??????????????????????????????????????????
  Logical Link Control (LLC) ??? Media Access
  Control (MAC) ???????????????????????? ????
  ?????? (Bridge), ?????? (Switch)

9
??????? OSI (Open System Interconnection)

• 3. ?????????????? (Network Layer)
• ??????????????????????????????? (package)
  ??????????????????????????????????????????????????
  ???????????????????????? ?????????????????????????
  ????????????????????????????????????????????????
  ???????????????????????? ???? ????????? (Router),
  Switch Layer3
• 4. ??????????? (Transport Layer)
• ?????????????????????????????????????????????-????
  ???????????????????????
• 5. ?????????-??? (Session Layer)
• ??????????????????????????????????????????????????
  ????????????????????????????? ????????????????????
  ?????????????????

10
??????? OSI (Open System Interconnection)

• 6. ??????????????? (Presentation Layer)
• ??????????????????????????????????????????????????
  ???????????????????????????? ? ???????????
• 7. ????????????? (Application Layer)
• ?????????????????????????????????????? ????
  ??????????????????? ??????????-????????

11
TCP/IP Model

• ???????? 4 ???? ???
• 1. Network Interface Layer
• ??????????????????????????????????????????????????
  ???? ?????????????????????????? ?????????????????
  ??????????????????????????????????????????????????
  ???? ???????????????? ???? Ethernet, Fast
  Ethernet, Token Ring, FDDI ?????????????????? OSI
  model ???? Physical Layer ??? Data Link Layer
  ?????????????
• 2. Internet Layer
• ?????????????????????????? ???????????????????????
  ??????? ????????????????????????????????
  ?????????????????????????????? ???????????????????
  ????? IP, ICMP, IGMP

12
TCP/IP Model

• 3. Transport Layer ???? Host-to-Host
• ??????????????????????????????????????????????????
  ???????????????????????????? TCP ??? UDP
• 4. Application Layer
• ??????????????????????????????????????????????????
  ????????????? Process ???? Application
  ???????????????????? ???? FTP, SMTP, HTTP,
  TELNET, DNS

13
IP Address

• ????????????????????????????????????????????
  ?????????????????????????????? ??? InterNIC
  (Internet Network Information Center)
  ???????????????????? 4 (IPV4) ????????? 32 ???
  ?????????????????????? 4 ??? ?????????????????????
  ? ???? 203.155.20.5 ?????????? IP
  ????????????????????????????? Network Address
  ???? Network ID ??? Host Address ???? Host ID

Network ID Host ID
????????????????? ??????????????
14
Class ??? IP Address

• ??????? 5 Class ??????? ??????????????????????????
  3 Class ??? Class A, B ??? C

Class First bits Range of IP ????? Host ?????? ????????
A 0 0.0.0.0 ??? 127.255.255.255 16,777,216 24
B 10 128.0.0.0 ??? 191.255.255.255 65,535 16
C 110 192.0.0.0 ??? 223.255.255.255 254 8
D 1110 224.0.0.0 ??? 239.255.255.255 - -
E 1111 240.0.0.0 ??? 255.255.255.255 - -
15
Class ??? IP Address

• Class A ??????????????????????????????????????????
  ? ?????????????????????? 16.7 ???????????
  ??????????????? 0 ??? 127 ?????? ??????????? 0
  ?????????????????????????????????
  ??????????????????????????????????? ?????????????
  127.0.0.1 ????????????????????????????????????????
  ???????????? ??????????? Loopback testing
• Class B ?????????????????????????
  ?????????????????????? 65,535 ???????
  ??????????????? 128 ??? 191 ?????????????????? 10
• Class C ?????????????????????????
  ?????????????????????? 254 ???????
  ??????????????? 192 ??? 223 ????????????????????
  110

16
Default Subnet Mask

• ??????????????????????????????????????????????????
  ???? ???????????????????????????????
  ????????????????? ???????????? ?

Class Net Mask ????????? Net Mask ?????????
A 255.0.0.0 11111111.00000000.00000000.00000000
B 255.255.0.0 11111111. 11111111.00000000.00000000
C 255.255.255.0 11111111. 11111111. 11111111.00000000
17
??????? Subnet ??? Class C

• ?????????????????? IP Address ????????????????????
  ?????? C ???????????? ?????????????? 8 ???
  ????????????? IP Address ?????????? Host Address
  (Host ID) ????????????????????? ???????????????
  Subnet ?????? C ?????????????????? 8 ??? ??? Host
  Address ??????? Subnet Address ??? Host Address
  ??????????? ??????????? Subnet ??????? C
  ???????????????????? 5 ??? ????????????????

18
??????? Subnet ??? Class C
?????????????????? Subnet Subnet Mask (?????????) Prefix ?????????????????? (Subnet) ??????????????????? (Host)
2 255.255.255.192 /26 4 62
3 255.255.255.224 /27 8 30
4 255.255.255.240 /28 16 14
5 255.255.255.248 /29 32 6
6 255.255.255.252 /30 64 2
19
??????? Subnet ??? Class C

• ???????? ??????????? A ??? IP Address ???? C ??
  IP Address ???? 203.146.86.0 ??? Net Mask
  255.255.255.0 ??????? Host ID ???? 8 ???
  ????????????? A ???????????? IP Address
  ???????????????????????????? ? ??????????
  203.146.86.1 ??? 203.146.86.254 (203.146.86.0 ???
  203.146.86.255 ???????)
• ????????????????????????? 2n 2
• n ??? ???????????????????????
• ??????? ??????????????????? ??? 203.146.86.0
  ?????? C ???????? 28 2 256 2 254 ???????

20
Classless IP Address

• ???????????????????????? ?????????????????????????
  ?????? ????????????????????????? Classless
  ????????????????? Net ID ?????????????????????????
  ???????? ??? 8, 16, 24 (Class A,B,C) ????????
  ??????????????????????????? ???? 203.146.86.0/24
  ???? IP Class C ?? Net ID 24 ??? ??? Host ID 8
  ??? ?????????????????????????????????? 254
  ??????? ??????????????????????????????????????????
  ??? ???????????????????????????????? ?
  ??????????????????????????????????????????????????
  ??? ????
• Network address 203.146.86.0
• Subnet mask 255.255.255.192(/26)

21
Classless IP Address

• ????????? Subnet mask ??????????????????????
• 11111111.11111111.11111111.11000000
• ????????????????? 2 ??? ???????????? Subnet
  ???????? 6 ???????? Host ID (26 2 62 ???????)

Subnet ???????????????????? Boardcast
203.146.86.0 203.146.86.1 to 203.146.86.62 203.146.86.63
203.146.86.64 203.146.86.65 to 203.146.86.126 203.146.86.127
203.146.86.128 203.146.86.129 to 203.146.86.190 203.146.86.191
203.146.86.192 203.146.86.193 to 203.146.86.254 203.146.86.255
22
Private IP Address

• ??????????????????? ?????????????
  ??????????????????????????????????????????????????
  ?? ???????????????????????????????????????????????
  ???????????????????? ????
• ?????????????????????
• ?????????? NAT ???????????????????????????????????
  ???
• ????????? Intranet ??????????????

Class Range of IP
A 10.0.0.0 to 10.255.255.255
B 172.16.0.0 to 172.31.255.255
C 192.168.0.0 to 192.168.255.255
23
DNS (Domain Name System)

• ??????????????????? Host ???? IP ??????? IP ????
  Host ???? www.google.co.th ltgt 209.85.175.104
• ??????????? Host ???? IP ???????? Forward Mapping
• ??????? IP ???? Host ???????? Reverse Mapping
• ?????????????????????????????? InterNIC
  (www.internic.net)
• ????????????????????????????????? THNIC
  (www.thnic.net)

24

• ???????? ????????????? 2 ?????? ???
• ???????? 2 ????? ???? se-ed.com
• ???????? 3 ????? ???? feu.ac.th

2 ????? 3 ????? ????????
.com .co.th ????????????
.net .net.th ?????????????????????????
.org .or.th ??????????????????????????
.edu .ac.th ??????????????
.gov .go.th ??????????????
.mil .mi.th ???????????????
- .in.th ???????????
25
Thank You !