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Table of contents
Slide 1
Background
Slide 3
Where IP is in the Stack
Related Protocols
Header Format
The IP Header
IP Header Fields
IP Header Fields (Cont.)
Slide 10
Slide 11
IP Example: Two Sequential Packets
IP Example: IPgrab’s Minimal Mode
IP Options
Slide 15
IP Options Format
IP Options Example: Record Route
Topology Discovered by Ping and Traceroute
IP Addresses
Slide 20
Format
Classful Addressing
Classful Addressing (Cont.)
Broadcast Addresses
Netmasks
Netmasks (Cont.)
Classful Examples
Drawbacks of Classful Addressing
CIDR
Netmasks Under CIDR
CIDR Example
Further CIDR Examples
Route Aggregation with CIDR
Did CIDR Really Slow Routing Table Growth?
Routing Table Growth
Special Reserved IP Addresses
Windows IP Configuration
Address Resolution Protocol (ARP)
What Is ARP?
ARP Transaction
ARP Packet Format
ARP Fields
ARP Fields (Cont.)
Example ARP Request and Reply
ARP Tables
Other ARP Functionality
Static Routing
The Basics
Example Routing Table: Windows 2000
How a Routing Table Is Read
Host Routing Procedure
Example Subnet Configuration
Fragmentation
Why Fragment Packets?
IP Header Fields Used in Fragmentation and Re-assembly
Example of Fragmentation
Drawbacks of Fragmentation
Links
References
Appendix: One’s Complement
One’s Compliment Checksum
One’s Compliment Checksum Example
Author:
Mike Borella