Packet Tracer is a software suite used to train computer-networking students for CCNA certification. Its primary aim is towards students that don’t have constant access to a Cisco network of devices. It comes standard with tutorials, help topics, and troubleshooting tips that are present in every layer of the OSI model.
Description:
Cisco Systems Packet Tracer
Packet Tracer OSPF
Packet Tracer Subinterfaces
Packet Tracer Video
Packet Tracer VLANS
Switch VLAN
WAN connection ADSL
EIGRP,FRAME RELAY, HTTP AND DNS Packet Tracer
configuration frame relay
How to configure OSPF in Packet Tracer.
OSPF Authentication Lab using Packet Tracer 5
Packet Tracer – DHCP Server with IP Helper
Testing Security Policies with Packet Tracer
using packet tracer Connecting to a web server using IP.avi
Multiuser Connection Packet Tracer 5.1

Cocoa Packet Analyzer is a native Mac OS X implementation of a network protocol analyzer and packet sniffer. It uses the industry-standard PCAP packet capture format for reading, capturing and writing packet trace files.

Packet Tracer 5.3 supports activities authored in Packet Tracer 4.0, 4.1, 4.11, 5.0, 5.1 and 5.2.x . Please note that the last two courses of the CCNA Discovery and CCNA Exploration curricula require Packet Tracer version 4.11 at a minimum, CCNA Security requires version 5.2 at a minimum, and the beta Packet Tracer Skills Based Assessments require version 5.2.1 at a minimum. The curricula are fully compatible with Packet Tracer 5.3

This book will cover structure, behavior and fields, all of which will be supported by packet captures and analysis. This second installment will cover layers 2 and 3 and is concerned with the key protocols and operations. It is meant to be a follow up to the first book in the sense that these are more advanced ideas that assume and/or build on the previous ideas. For example, it is difficult to understand routing without first understanding IP. This book will be written to a depth that will serve experts and those first learning about these topics.