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Lecture 5 internet-protocol_assignments

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The document discusses several Internet protocols: - IP prepares packets for transmission across the Internet and provides unreliable packet delivery. IPv6 was created to address issues with IPv4 like exhaustion of addresses. - ARP resolves IP addresses to hardware addresses on local networks and maintains address mappings in caches. - ICMP provides error reporting and network monitoring functions to support IP. - TCP provides reliable data transmission and UDP provides simple transmission of datagrams.

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Chapter 5: Internet Protocols BITS 2513: Internet Technology
To support the Internet and all its services, many protocols are necessary. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Protocol ,[object Object],[object Object],[object Object]
IP : Internet Protocol ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Internet Protocol (IP) ,[object Object],[object Object],[object Object]
IP Packet
IPv6 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ASSIGNMENT 2 (Part 1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ARP (address resolution protocol) ,[object Object],[object Object],[object Object],[object Object]
Why it is needed? ARP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Basic Idea ,[object Object],[object Object],[object Object],[object Object],[object Object]
ARP Cache ,[object Object],[object Object],[object Object],[object Object]
Step when ARP request packet generated ,[object Object],[object Object],[object Object],[object Object],[object Object]
Step for ARP request packet is received by a host ,[object Object],[object Object],[object Object]
arp Commnd ,[object Object],kiev> arp -a Net to Media Table Device IP Address Mask Flags Phys Addr ------ -------------------- --------------- ----- --------------- hme0 redshirt 255.255.255.255 00:60:08:8b:e9:aa hme0 tiger 255.255.255.255 08:00:20:85:f6:8d hme0 thunderbolt 255.255.255.255 08:00:20:9a:af:60 hme0 starfury 255.255.255.255 08:00:20:9a:af:79 hme0 cs3-router 255.255.255.255 00:10:11:09:f0:28 hme0 epsilon3-38 255.255.255.255 08:00:20:86:71:c0 hme0 mordor-38 255.255.255.255 08:00:20:96:01:ad hme0 itlabman 255.255.255.255 00:00:c0:65:d7:b9 hme0 joanne 255.255.255.255 00:05:02:59:51:52 hme0 laurie 255.255.255.255 00:05:02:79:c4:20 hme0 kiev 255.255.255.255 SP 08:00:20:9e:f2:99
ARP Packet Format 16 8 Sender’s Protocol Address Target Hardware Address 31 Hardware Type Hardware Size Protocol Size Operation Protocol Type Sender’s Hardware Address (for Ethernet 6 bytes) Target Hardware Address Target Protocol Address Sender’s Hardware Address Sender’s Protocol Address
Proxy ARP ,[object Object],[object Object],[object Object]
Proxy ARP ,[object Object],[object Object],[object Object]
Gratuitous ARP ,[object Object],[object Object],[object Object],[object Object],[object Object]
Issues ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ICMP ,[object Object],[object Object],[object Object],[object Object],[object Object]
ICMP (Cont) ,[object Object]
ICMP message format ,[object Object],[object Object],[object Object],[object Object],[object Object]
ICMP Query message ,[object Object],[object Object],[object Object]
ICMP Error message ,[object Object],[object Object],[object Object]
ASSIGNMENT 2 (Part 2) ,[object Object],[object Object],[object Object],[object Object],[object Object]
SMTP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Management
SNMP -History
Simple Network Management Protocol ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
Security in SNMP ,[object Object],[object Object],[object Object],[object Object]
Security improvements – SNMP V3 ,[object Object],[object Object],[object Object],[object Object]

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Lecture 5 internet-protocol_assignments

  • 1. Chapter 5: Internet Protocols BITS 2513: Internet Technology
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  • 16. ARP Packet Format 16 8 Sender’s Protocol Address Target Hardware Address 31 Hardware Type Hardware Size Protocol Size Operation Protocol Type Sender’s Hardware Address (for Ethernet 6 bytes) Target Hardware Address Target Protocol Address Sender’s Hardware Address Sender’s Protocol Address
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