Networking basics #

Scope #

• Networking as Inter-Process Communication (IPC)
• Packets
• Network interfaces
• Addressing
• Basics of the ip command
• The nc tool
• Capturing network traffic using tcpdump
• Packet encapsulation
• Network stack
• Layered network models (OSI and TCP/IP)
• MAC hardware addresses
• Ethernet header
• Operating principles of switches
• IP header
• Operating principles of a router
• Address Resolution Protocol (ARP)
• Routing table
• IP packet fragmentation
• TTL (Time To Live)
• ICMP protocol

Reference #

1. Lecture Slides
2. Code samples
3. Textbook: chapter 16 (Distributed Operating Systems): sec 16.3 (Network Structure), sec. 16.4 (Network Topology), sec. 16.5 (Communication Structure), sec. 16.6 (Communication Protocols), sec. 16.9 (An Example: Networking)
4. Old Slides: Inet_1en.pdf
5. Supplementary reading: W.R. Stevens, Unix Network Progamming, Vol. 1, 2nd Ed.
   Chapters: 1 (Introduction), 2 (The Transport Layer: TCP and UDP).