protokol jaringan tcp/ip -...
TRANSCRIPT
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PROTOKOL JARINGAN
TCP/IP
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Apa itu Jaringan?
A connection between two or more computers so they may exchange information/resources.
Using a network ‘medium’, computers pass information from one to another in an organized fashion using communication rules governed by ‘protocols’.
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Media JaringanRefers to the tool used to carry the transmitted signals from one computer to the next. Typically Unshielded Twisted Pair cabling is the most common (10BaseT or 100BaseT).
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Protokol
Aturan atau kesepakatan yang mengatur komunikasi antar dua device. Yang diatur antara lain adalah:
• Deteksi error dan mengeluarkan pesan error
• Melakukan data kompresi
•• Mengatur bagaimana bila satu device melakukan pengiriman, maka yang lain akan mendengarkan
TCP/IP, IPX/SPX, Apple Talk, NetBEUI, etc.
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Traditional Methods
T1
T3
Fiber
DSL
InternetModem
DSL = Digital Subscriber Line
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Wireless
Wareless Methods
Internet
Wireless
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Menggabungkan dua jaringan LAN untuk membentuk WAN
NCLNCL
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Wireless Last Mile Solution untuk ISPs dan pemakai home/small business.
InternetCCU EUM
EUM
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Implementasi Jaringan
� Mode Bridge: menghubungkan dua segmen yang berbeda segmen jaringan
� Mode Route: menghubungkan dua jaringan yang berbeda. Menggunakan routing table yang berbeda. Menggunakan routing table untuk mengirimkan paket dari satu jaringan ke jaringan yang lain.
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Bridge Mode
NCLNCL NCLNCL
TCP/IP
NetBEUI
IPX/SPX
AppleTalk
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Route Mode
NCLNCL
TCP/IPNetwork ID: 192.168.10.0 Network ID: 10.32.0.0
NCLNCL
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TCP/IP: The Internet Protocol
Dengan makin berkembangnya Internet, maka protocol TCP/IP menjadi ‘lingua franca’ yang dipakai oleh komputer dan sistem operasi
TCP/IP
Transmission Control Protocol/Internet Protocol
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Alamat Network
Agar paket dapat mencapai tujuannya, maka dibutuhkan pengalamatan, sama seperti surat biasa.
Untuk IP, pengalamatan menggunakan 4 suku byte:
A.B.C.DA.B.C.D
Yang masing-masing suku diwakili oleh satu byte.
255 Consumers Road 207.23.175.211001111.00010111.10101111.00000010
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IP: 10.32.0.100SM 255.255.255.224
IP: 10.32.0.24SM: 255.255.255.224
Network 10.32.0.0 Network 10.32.0.96
The Subnet Mask menentukan Alamat Jaringan dari segmen jaringan dimana komputer tersebut berada
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Aturan Penamaan IP
1. Semua komputer yang berada dalam satu segmen TCP/IP harus memiliki NetID yang sama.
2. Tidak ada dua komputer yang memiliki satu HostID yang sama. sama.
3. Semua komputer pada jaringan yang sama, harus memiliki subnet mask yang sama.
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KELAS ALAMAT IP
N H H HClass A:
N N H HClass B:
1 Byte 1 Byte 1 Byte 1 Byte
N N N HClass C:
Alamat Jaringan (NetID) ditentukan oleh NIC
Alamat Komputer (HostID) ditentukan oleh Admin
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HTTP FTP Telnet SNMPRemember: the Application Layer of the TCP model is responsible for interacting with applications.
Many applications have a certain protocol they rely on to get the Many applications have a certain protocol they rely on to get the job done. Some common applications and their associated protocols would be:
Web Browser – HTTP
SNMP Manager – SNMP
E-Mail Program – SMTP
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IP addressing
� IP Address Bit Patterns
0 Network # Host #Class A:
Bit #1 2 - 8 9 – 32 (24 bits)
Class A address range
1.0.0.0 – 126.0.0.0 (127.0.0.0 is for loopback)
Private Class A address: 10.0.0.0
Number of hosts: 224 -2 = 16,777,214
8 16 24 32
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Aturan Oktet Pertama