Network Analysis

6.

Analyzing Network Protocols

6.1.

Data Link Layer Analysis

6.1.1.

Ethernet Frame Analysis

6.1.1.1.

Frame Structure Examination

6.1.1.1.1.

Preamble Analysis

6.1.1.1.2.

Address Field Analysis

6.1.1.1.3.

Type/Length Field Analysis

6.1.1.1.4.

Payload Analysis

6.1.1.1.5.

Frame Check Sequence Validation

6.1.1.2.

Frame Size Analysis

6.1.1.2.1.

Minimum Frame Size

6.1.1.2.2.

Maximum Frame Size

6.1.1.2.3.

6.1.2.

MAC Address Analysis

6.1.2.1.

Source Address Identification

6.1.2.2.

Destination Address Identification

6.1.2.3.

Broadcast and Multicast Detection

6.1.2.4.

Vendor Identification

6.1.3.

6.1.3.1.

802.1Q Tag Detection

6.1.3.1.1.

VLAN ID Extraction

6.1.3.1.2.

Priority Field Analysis

6.1.3.1.3.

Canonical Format Indicator

6.1.3.2.

Double Tagging (QinQ)

6.1.3.3.

VLAN Hopping Detection

6.1.4.

Spanning Tree Protocol Analysis

6.1.4.1.

BPDU Inspection

6.1.4.1.1.

Root Bridge Election

6.1.4.1.2.

6.1.4.1.3.

Topology Changes

6.1.4.2.

Loop Prevention Verification

6.1.4.3.

Convergence Analysis

6.2.

Network Layer Analysis

6.2.1.

IPv4 Header Analysis

6.2.1.1.

Version Field Verification

6.2.1.2.

Header Length Calculation

6.2.1.3.

Type of Service Analysis

6.2.1.4.

Total Length Validation

6.2.1.5.

Identification and Fragmentation

6.2.1.5.1.

Fragment Identification

6.2.1.5.2.

Fragment Offset

6.2.1.5.3.

More Fragments Flag

6.2.1.5.4.

Don't Fragment Flag

6.2.1.6.

Time to Live Analysis

6.2.1.6.1.

TTL Decrementing

6.2.1.6.2.

Routing Loop Detection

6.2.1.6.3.

Path Length Estimation

6.2.1.7.

Protocol Field Identification

6.2.1.8.

Header Checksum Validation

6.2.1.9.

Options Field Analysis

6.2.2.

IPv6 Header Analysis

6.2.2.1.

Version Field Verification

6.2.2.2.

Traffic Class Analysis

6.2.2.3.

Flow Label Usage

6.2.2.4.

Payload Length Validation

6.2.2.5.

Next Header Chain

6.2.2.6.

Hop Limit Analysis

6.2.2.7.

Extension Headers

6.2.2.7.1.

Hop-by-Hop Options

6.2.2.7.2.

6.2.2.7.3.

Fragment Header

6.2.2.7.4.

Destination Options

6.2.3.

IP Fragmentation Analysis

6.2.3.1.

Fragmentation Detection

6.2.3.2.

Fragment Reassembly

6.2.3.3.

Fragmentation Issues

6.2.3.3.1.

Path MTU Discovery

6.2.3.3.2.

Fragmentation Attacks

6.2.3.3.3.

Performance Impact

6.2.4.

6.2.4.1.

Echo Request and Reply Analysis

6.2.4.1.1.

Ping Operations

6.2.4.1.2.

Response Time Measurement

6.2.4.1.3.

Payload Analysis

6.2.4.2.

Error Message Analysis

6.2.4.2.1.

Destination Unreachable Types

6.2.4.2.2.

Time Exceeded Analysis

6.2.4.2.3.

Parameter Problem Detection

6.2.4.2.4.

Redirect Message Analysis

6.2.4.3.

Traceroute Analysis

6.2.4.3.1.

6.2.4.3.2.

Hop-by-Hop Analysis

6.2.4.3.3.

6.3.

Transport Layer Analysis

6.3.1.

6.3.1.1.

Connection Establishment Analysis

6.3.1.1.1.

Three-Way Handshake Verification

6.3.1.1.1.1.

SYN Packet Analysis

6.3.1.1.1.2.

SYN-ACK Response Analysis

6.3.1.1.1.3.

ACK Completion Analysis

6.3.1.1.2.

Connection Options

6.3.1.1.2.1.

Maximum Segment Size

6.3.1.1.2.2.

6.3.1.1.2.3.

Selective Acknowledgment

6.3.1.1.2.4.

6.3.1.2.

Sequence and Acknowledgment Analysis

6.3.1.2.1.

Initial Sequence Numbers

6.3.1.2.2.

Sequence Number Tracking

6.3.1.2.3.

Acknowledgment Validation

6.3.1.2.4.

Out-of-Order Detection

6.3.1.3.

Window Management

6.3.1.3.1.

Receive Window Analysis

6.3.1.3.2.

Window Scaling Factor

6.3.1.3.3.

Zero Window Conditions

6.3.1.3.4.

6.3.1.4.

Flow Control Analysis

6.3.1.4.1.

Sliding Window Protocol

6.3.1.4.2.

Buffer Management

6.3.1.4.3.

Backpressure Detection

6.3.1.5.

Congestion Control Analysis

6.3.1.5.1.

Slow Start Phase

6.3.1.5.2.

Congestion Avoidance

6.3.1.5.3.

Fast Retransmit

6.3.1.5.4.

6.3.1.6.

Connection Termination Analysis

6.3.1.6.1.

Four-Way Handshake

6.3.1.6.2.

FIN Packet Analysis

6.3.1.6.3.

Connection Reset Analysis

6.3.1.6.4.

TIME_WAIT State

6.3.1.7.

Error Detection and Recovery

6.3.1.7.1.

Retransmission Analysis

6.3.1.7.2.

Duplicate ACK Detection

6.3.1.7.3.

Selective Acknowledgment

6.3.1.7.4.

Timeout Analysis

6.3.2.

6.3.2.1.

Datagram Structure Analysis

6.3.2.1.1.

Header Field Validation

6.3.2.1.2.

Checksum Verification

6.3.2.1.3.

Length Field Analysis

6.3.2.2.

Connectionless Communication Patterns

6.3.2.2.1.

Request-Response Analysis

6.3.2.2.2.

Streaming Data Analysis

6.3.2.2.3.

Broadcast and Multicast Analysis

6.3.2.3.

Application Identification

6.3.2.3.1.

Port-based Identification

6.3.2.3.2.

Payload Analysis

6.3.2.3.3.

Protocol Signatures

6.3.2.4.

Packet Loss Detection

6.3.2.4.1.

Sequence Number Analysis

6.3.2.4.2.

Application-level Detection

6.3.2.4.3.

Statistical Analysis

6.4.

Application Layer Analysis

6.4.1.

6.4.1.1.

6.4.1.1.1.

6.4.1.1.1.1.

A Record Queries

6.4.1.1.1.2.

AAAA Record Queries

6.4.1.1.1.3.

6.4.1.1.1.4.

MX Record Queries

6.4.1.1.1.5.

6.4.1.1.2.

6.4.1.1.3.

Question Section Analysis

6.4.1.2.

Response Analysis

6.4.1.2.1.

6.4.1.2.1.1.

6.4.1.2.1.2.

6.4.1.2.1.3.

6.4.1.2.1.4.

6.4.1.2.2.

Answer Section Analysis

6.4.1.2.3.

Authority Section Analysis

6.4.1.2.4.

Additional Section Analysis

6.4.1.3.

DNS Performance Analysis

6.4.1.3.1.

Query Response Time

6.4.1.3.2.

Cache Hit Rates

6.4.1.3.3.

Recursive vs. Iterative Queries

6.4.2.

6.4.2.1.

DHCP Message Types

6.4.2.1.1.

DHCP Discover Analysis

6.4.2.1.2.

DHCP Offer Analysis

6.4.2.1.3.

DHCP Request Analysis

6.4.2.1.4.

DHCP Acknowledge Analysis

6.4.2.1.5.

DHCP Release Analysis

6.4.2.1.6.

DHCP Decline Analysis

6.4.2.2.

DHCP Options Analysis

6.4.2.2.1.

Subnet Mask Options

6.4.2.2.2.

6.4.2.2.3.

DNS Server Options

6.4.2.2.4.

Lease Time Options

6.4.2.2.5.

Vendor-specific Options

6.4.2.3.

Lease Management

6.4.2.3.1.

Lease Assignment Process

6.4.2.3.2.

Lease Renewal Process

6.4.2.3.3.

Lease Expiration Handling

6.4.3.

6.4.3.1.

Request Analysis

6.4.3.1.1.

6.4.3.1.1.1.

6.4.3.1.1.2.

6.4.3.1.1.3.

6.4.3.1.1.4.

DELETE Requests

6.4.3.1.2.

Request Headers

6.4.3.1.2.1.

6.4.3.1.2.2.

User-Agent Header

6.4.3.1.2.3.

6.4.3.1.2.4.

Authorization Headers

6.4.3.1.3.

Request Body Analysis

6.4.3.2.

Response Analysis

6.4.3.2.1.

6.4.3.2.1.1.

2xx Success Codes

6.4.3.2.1.2.

3xx Redirection Codes

6.4.3.2.1.3.

4xx Client Error Codes

6.4.3.2.1.4.

5xx Server Error Codes

6.4.3.2.2.

Response Headers

6.4.3.2.2.1.

Content-Type Header

6.4.3.2.2.2.

Content-Length Header

6.4.3.2.2.3.

Cache-Control Headers

6.4.3.2.2.4.

Set-Cookie Headers

6.4.3.2.3.

Response Body Analysis

6.4.3.3.

HTTP Performance Analysis

6.4.3.3.1.

Request-Response Time

6.4.3.3.2.

Keep-Alive Connections

6.4.3.3.3.

Compression Analysis

6.4.3.3.4.

Caching Behavior

6.4.4.

HTTPS and TLS Analysis

6.4.4.1.

TLS Handshake Analysis

6.4.4.1.1.

Client Hello Analysis

6.4.4.1.2.

Server Hello Analysis

6.4.4.1.3.

Certificate Exchange

6.4.4.1.4.

6.4.4.1.5.

Handshake Completion

6.4.4.2.

Certificate Analysis

6.4.4.2.1.

Certificate Validation

6.4.4.2.2.

Certificate Chain Analysis

6.4.4.2.3.

Certificate Expiration

6.4.4.3.

Encryption Analysis

6.4.4.3.1.

Cipher Suite Selection

6.4.4.3.2.

Key Length Analysis

6.4.4.3.3.

Protocol Version Analysis

6.4.5.

6.4.5.1.

Control Channel Analysis

6.4.5.1.1.

Command Analysis

6.4.5.1.2.

Response Code Analysis

6.4.5.1.3.

Authentication Process

6.4.5.2.

Data Channel Analysis

6.4.5.2.1.

Active vs. Passive Mode

6.4.5.2.2.

Data Transfer Analysis

6.4.5.2.3.

Transfer Completion

6.4.5.3.

FTP Performance Analysis

6.4.5.3.1.

6.4.5.3.2.

Connection Overhead

6.4.5.3.3.

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