By Christopher Carthern
This publication is a concise one-stop table reference and synopsis of uncomplicated wisdom and abilities for Cisco certification prep. For starting and skilled community engineers tasked with construction LAN, WAN, and information heart connections, this booklet lays out transparent instructions for fitting, configuring, and troubleshooting networks with Cisco units. the entire diversity of certification issues is roofed, together with all elements of IOS, NX-OS, and ASA software program. The emphasis all through is on fixing the real-world demanding situations engineers face in configuring community units, instead of on exhaustive descriptions of features.
This sensible table better half doubles as a complete review of the fundamental wisdom and talents wanted by way of CCENT, CCNA, and CCNP examination takers. It distills a finished library of cheat sheets, lab configurations, and complex instructions that the authors assembled as senior community engineers for the good thing about junior engineers they educate, mentor at the activity, and get ready for Cisco certification tests. earlier familiarity with Cisco routing and switching is fascinating yet now not invaluable, as Chris Carthern, Dr. Will Wilson, Noel Rivera, and Richard Bedwell begin their booklet with a overview of the fundamentals of configuring routers and switches. the entire extra complex chapters have labs and routines to enhance the thoughts learned.
This booklet differentiates itself from different Cisco books out there by way of drawing close community safety from a hacker's point of view. not just does it supply community safeguard concepts however it teaches you ways to take advantage of black-hat instruments equivalent to oclHashcat, Loki, Burp Suite, Scapy, Metasploit, and Kali to really attempt the safety recommendations learned.
Readers of Cisco Networks will learn:
- the best way to configure Cisco switches, routers, and information heart units in commonplace company community architectures
- the talents and information had to go Cisco CCENT, CCNA, and CCNP certification exams
- the right way to manage and configure at-home labs utilizing digital machines and lab workouts within the booklet to perform complicated Cisco commands
- how one can enforce networks of Cisco units helping WAN, LAN, and information heart configurations
- tips to enforce safe community configurations and configure the Cisco ASA firewall
- the best way to use black-hat instruments and community penetration ideas to check the safety of your network
Read or Download Cisco Networks: Engineers' Handbook of Routing, Switching, and Security with IOS, NX-OS, and ASA PDF
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Additional resources for Cisco Networks: Engineers' Handbook of Routing, Switching, and Security with IOS, NX-OS, and ASA
Keeping these attributes in mind, we can conclude that a source router needs to learn the following information to perform its function of forwarding the network packet from one network to another (including those not directly connected to it): 1. A list of the addresses of networks present in its routing domain. Any of these networks might figure as the destination network for a particular data flow. 2. For each of those reachable network destination addresses, the most appropriate path or route from the source router to the destination network.
Edmund Wilson, American literary critic The Attributes of a Route In considering the transmission of data, we need to account for the possibility that a destination workstation might not be in a network that is directly connected to the source router. If so, then at best the source router can only relay those network packets to a neighboring router, which it is hoped will do the same until there is eventual delivery to the destination. In such a case, each sending router identifies the neighboring router that has been determined (in advance) to be next in the network path toward the destination.
The Structure of an IP Datagram Every network packet (IP datagram) conforms to the same standard format or template. That is, the packet is divided into sections, with each section reserved as the placeholder (field or location) for data of a specific purpose. There is a variable-length field in the network packet that carries the data payload as cargo. The IP addresses of the source and destination workstations or end systems are placed in defined, fixed-length locations (fields) in the standard template of the network packet.
Cisco Networks: Engineers' Handbook of Routing, Switching, and Security with IOS, NX-OS, and ASA by Christopher Carthern