4. INTERNET LAYER - PROTOCOLS

• 4.1 INTRODUCTION
• 4.2 INTERNET PROTOCOL - IP
  • 4.2.1 INTRODUCTION
  • 4.2.2 PROTOCOL WALK-THROUGH
    • 4.2.2.1 Options: RFC 791 Section 3.2
    • 4.2.2.2 Addresses in Options: RFC 791 Section 3.1
    • 4.2.2.3 Unused IP Header Bits: RFC 791 Section 3.1
    • 4.2.2.4 Type of Service: RFC 791 Section 3.1
    • 4.2.2.5 Header Checksum: RFC 791 Section 3.1
    • 4.2.2.6 Unrecognized Header Options: RFC 791 Section 3.1
    • 4.2.2.7 Fragmentation: RFC 791 Section 3.2
    • 4.2.2.8 Reassembly: RFC 791 Section 3.2
    • 4.2.2.9 Time to Live: RFC 791 Section 3.2
    • 4.2.2.10 Multi-subnet Broadcasts: RFC 922
    • 4.2.2.11 Addressing: RFC 791 Section 3.2
  • 4.2.3 SPECIFIC ISSUES
    • 4.2.3.1 IP Broadcast Addresses
    • 4.2.3.2 IP Multicasting
    • 4.2.3.3 Path MTU Discovery
    • 4.2.3.4 Subnetting
• 4.3 INTERNET CONTROL MESSAGE PROTOCOL - ICMP
  • 4.3.1 INTRODUCTION
  • 4.3.2 GENERAL ISSUES
    • 4.3.2.1 Unknown Message Types
    • 4.3.2.2 ICMP Message TTL
    • 4.3.2.3 Original Message Header
    • 4.3.2.4 ICMP Message Source Address
    • 4.3.2.5 TOS and Precedence
    • 4.3.2.6 Source Route
    • 4.3.2.7 When Not to Send ICMP Errors
    • 4.3.2.8 Rate Limiting
  • 4.3.3 SPECIFIC ISSUES
    • 4.3.3.1 Destination Unreachable
    • 4.3.3.2 Redirect
    • 4.3.3.3 Source Quench
    • 4.3.3.4 Time Exceeded
    • 4.3.3.5 Parameter Problem
    • 4.3.3.6 Echo Request/Reply
    • 4.3.3.7 Information Request/Reply
    • 4.3.3.8 Timestamp and Timestamp Reply
    • 4.3.3.9 Address Mask Request/Reply
    • 4.3.3.10 Router Advertisement and Solicitations
• 4.4 INTERNET GROUP MANAGEMENT PROTOCOL - IGMP