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A local area network (LAN) is a computer network that interc
Transcript of A local area network (LAN) is a computer network that interc
A local area network (LAN) is a computer network that interconnects computers within a limited area such as a home, school, computer laboratory, or office building, using network media.
What is the VLAN?
A VLAN is a set of workstations within a LAN that can communicate with each other as though they were on a single, isolated LAN.
WHAT IS A VLAN?
VLAN's allow a network manager to logically segment a LAN into different broadcast domains .VLAN's also allow broadcast domains to be defined without using routers.
1) Layer 1 VLAN: Membership by Port
2) Layer 2 VLAN: Membership by MAC Address
MAC Address VLAN
Types of VLAN's
3) Layer 2 VLAN: Membership by Protocol Type
4) Layer 3 VLAN: Membership by IP Subnet Address
IP Subnet VLAN
5) Higher Layer VLAN's
What is DNS?
The DNS translates Internet domain and host names to IP addresses. DNS automatically converts the names we type in our Web browser address bar to the IP addresses of Web servers hosting those sites.
How the DNS works?
WHAT IS AN IP ?
Internet Protocol address.
An IP address is assigned to every computer on an Ethernet network.
32 bits (IPv4) Ex: 22.214.171.124
128 bits (IPv6) Ex:1999:6:13:0:0:1962:2:15
IP Address Class
Class A, Class B, Class C, Class D, Class E.
IP Address Class / IP Address / Network ID / Host ID
A w.x.y.z w.0.0.0 1-126
B w.x.y.z w.x.0.0 128-191
C w.x.y.z w.x.y.0 192-223
D w.x.y.z not valid 224-239
E w.x.y.z not valid 240-255
192.0.0.0/8 (A class)
192.168.0.0/16 (B class)
192.168.1.0/24 (C class)
IP and DHCP
What is a DHCP
Dynamic Host Configuration Protocol
DHCP is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.
DHCP Operating Principles
Default gateway address
1-Destination IP address (not yet approved): 0.0.0.0
2-Hedef MAC adresi(known,client):00-A0-CC-66-73-1F
3-Kaynak IP Adresi(known,DHCP server): 10.0.0.1
4-Kaynak MAC Adresi(known,DHCP server):00-A0-C0-B6-12-6F
1-Destination IP address (unknown): 255.255.255.255 (broadcast)
2-Destination MAC address(unknown): FF.FF.FF.FF.FF.FF.FF(broadcast)
3-Source IP Address(unknown): 0.0.0.0
4-Source MAC Address:00-A0-CC-66-73-1F
VARSA SORUNUZ HAYDİ SORUNUZ :D
How VLAN's work?