Address Resolution Protocol

Address Resolution Protocol Presenting By:- Jatin Kumar

What is AR ? ,[object Object],[object Object],[object Object]

What is AR ?(Contd.) ,[object Object]

Why addressing is done at two different layers? ,[object Object],[object Object],[object Object]

Why AR is necessary? ,[object Object],[object Object],[object Object]

Why AR is necessary?(Contd.) ,[object Object],[object Object],[object Object]

Methods of Address Resolution ,[object Object],[object Object],[object Object]

Direct Mapping ,[object Object],[object Object],[object Object]

222 101 33 29 11011110 01100101 00100001 00101001 29 00101001 8 bit h/w address (#29) Decimal Binary 32 bit IP address (222.101.33.29) Address Resolution through direct mapping

Address Resolution through direct mapping ,[object Object],[object Object],[object Object]

Direct mapping is not possible with large h/w address. ,[object Object],[object Object]

32 bit IP address (?) 0 8 16 24 32 40 4 8 ? ? ? ? ? ? ? ? Decimal Binary 0A A7 94 07 CB D0 00001010 10100111 10010100 00000111 11001011 11010000 48 bit h/w address(0A-A7-94-07-CB-D0)

Dynamic Address Resolution ,[object Object],[object Object]

LAN Switch Device C IP address: IPC H/W address: #46 Device A IP address: IPA H/W address: #43 Device B IP address: IPB H/W address: #79 Device D IP address: IPD H/W address: #48 Who is IPB? IPB is #79

Dynamic Address Resolution(Contd.) ,[object Object]

Address Resolution Protocol

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Address Resolution Protocol