IPv6 Addressing Overview: Addressing Model and Address Types
http://rapidshare.com/files/143283052/ipv6.pdf.html
Showing posts with label ccna. Show all posts
Showing posts with label ccna. Show all posts
Sunday, September 7, 2008
Tuesday, August 26, 2008
NAT PRIVATE IP ADDRESS RANGES
http://rapidshare.com/files/140291983/NAT___Private_IP_Address_Ranges.rar.html
Wednesday, June 18, 2008
Friday, June 13, 2008
configuring lines and terminals
http://rapidshare.com/files/121996071/Configuring_lines_and_terminals.pdf.html
chage the username password promt
http://rapidshare.com/files/121996048/Change_the_username_password_prompt_with_AAA.pdf.html
Monday, June 9, 2008
Sunday, June 8, 2008
IP_Routing_Fundamentals REFERENCE
http://rapidshare.com/files/121016666/www.NetAP.net_Cisco_Press_1999_IP_Routing_Fundamentals.rar.html
Tuesday, May 6, 2008
Cisco Configmaker V2.6, Cisco configmaker
hxxp://rapidshare.com/files/111275046/Cisco_ConfigMaker_2.6.rar
Thursday, May 1, 2008
Tuesday, April 29, 2008
CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition
LAN Switch Security: What Hackers Know About Your Switches
A practical guide to hardening Layer 2 devices and stopping campus network attacks
Eric Vyncke
Christopher Paggen, CCIE® No. 2659
Contrary to popular belief, Ethernet switches are not inherently secure. Security vulnerabilities in Ethernet switches are multiple: from the switch implementation, to control plane protocols (Spanning Tree Protocol [STP], Cisco® Discovery Protocol [CDP], and so on) and data plane protocols, such as Address Routing Protocol (ARP) or Dynamic Host Configuration Protocol (DHCP). LAN Switch Security explains all the vulnerabilities in a network infrastructure related to Ethernet switches. Further, this book shows you how to configure a switch to prevent or to mitigate attacks based on those vulnerabilities. This book also includes a section on how to use an Ethernet switch to increase the security of a network and prevent future attacks.
Divided into four parts, LAN Switch Security provides you with steps you can take to ensure the integrity of both voice and data traffic traveling over Layer 2 devices. Part I covers vulnerabilities in Layer 2 protocols and how to configure switches to prevent attacks against those vulnerabilities. Part II addresses denial-of-service (DoS) attacks on an Ethernet switch and shows how those attacks can be mitigated. Part III shows how a switch can actually augment the security of a network through the utilization of wirespeed access control list (ACL) processing and IEEE 802.1x for user authentication and authorization. Part IV examines future developments from the LinkSec working group at the IEEE. For all parts, most of the content is vendor independent and is useful for all network architects deploying Ethernet switches.
After reading this book, you will have an in-depth understanding of LAN security and be prepared to plug the security holes that exist in a great number of campus networks.
Download this eBook
Wednesday, April 16, 2008
IP Routing Fundamentals
IP Routing Fundamentals
IP Routing Fundamentals A comprehensive ntroduction to routing concepts and protocols in IP networks. * Comprehensive review of the operational mechanics of today’s leading routing protocols, including IGRP, EIGRP, OSPF, RIP, and RIP-2 IP Routing Fundamentals is the definitive introduction to routing in IP networks. This comprehensive guide explores the mechanics of routers, routing protocols, network interfaces, and operating systems. CODE
* Detailed explanation of IP addressing, including classful and classless addresses, subnetting, supernetting, Classless Interdomain Routing (CIDR), and Variable Length Subnet Masks (VLSM)
* Side-by-side comparisons of various LAN segmentation technologies, including bridges, switches, and routers
* Exploration of how routers are used to build wide area networks
* Examination of the future of routing, including IPv6, next generation routing protocols, host-based routing, and IP Switching
Tuesday, April 15, 2008
Cisco DQOS Exam Certification Guide
This is the eBook version of the printed book.
Cisco DQOS Exam Certification Guide
The official self-study test preparation guide for the Cisco DQOS 9E0-601 and QOS 642-641 exams
This official study guide helps you master all the topics on the DQOS exam, including:
* QoS concepts, tools, and architectures
* Classification and marking concepts and tools
* Queuing in Cisco routers and configuration of queuing tools
* Traffic policing and shaping in Cisco routers
* Configuration of congestion avoidance tools
* Configuration of link-efficiency tools
* Call admission control (CAC) tools for voice and video connections
* Cisco QoS management tools
* QoS design processes
* QoS on LAN switches
The Cisco IP Telephony Support, Design, and Operations Specialist focused certifications validate proficiency in designing, installing, and supporting a multiservice network solution. A solid understanding of quality-of-service (QoS) features and implementation is essential for all of the Cisco IP Telephony focused certifications and is also a core component of the CCIP(tm) certification.
Download Now
Saturday, April 12, 2008
Dynamips 10 Steps Guide
Dynamips has changed the network world and it helped many network fans to obtain the network labs without paying any fee. It is fantastic when you are running several Cisco Routers on your computer, even an entire CCIE Lab!
I do believe there are some guides in the internet which you can follow to use the Dynamips, however, a few my friends are interested on this and I am too lazy to explain It is a draft instead of a real guide, just call it
Dynamips 10 Steps for Dummies
by CiscoSpot
Any distribution is welcome, please feel free to contact net@netap.com
The website you must know if you are going to be a Dynamiper.
Dynamips Official Blog, http://www.ipflow.utc.fr/blog/Dynagen Official website, http://dynagen.org/Winpcap Official website, http://www.winpcap.org/
Step by Step
1. Download Winpcap, http://www.winpcap.org/install/default.htm
2. Download Dynagen,http://sourceforge.net/project/showfiles.php?group_id=160317
3. Install Winpcap.
4. Install Dynagen.
Three shortcuts will appear on your desktop, Dynagen Sample labs (Folder), Dynamips Server, Network device list. Double-click Dynagen Sample labs and you will see a file called “all_config_options.txt”, which is quite useful for you. Open it by Wordpad instead of Notepad and view the options you can utilize in the labs.
Open “Simple lab 1” and right-click the simple1.net then choose “Edit network file”, and choose Wordpad to open it. It is a 7200 platform and there are two routers in the diagram using 160MB ram, respectively. The main configurations inside are as below.
5. Download Cisco IOS for Cisco 3600 serials.Although Dynamics support several Cisco platforms, personally I prefer 3640 when comparing the RAM requirement, modules support and IOS features. You can search IOS resources from internet yourself.
6. Put *.bin file (c3640-jk9s-mz.123-7.T12.bin in this guide) of your Cisco IOS in some folder. For example, D:\Dynamips.7. Copy simple1.net to the folder D:\Dynamips and change the file by Wordpad. You can also change its name to mylab.net, or the others as well. It doesn’t make any sense for the lab. Based on our information described above, we change the network file as below.8. Run “Dynamips Server” on your desktop. Maybe it will be blocked by Windows Firewall. Just Unblock it. Double-click your *.net file such as mylab.net. Use command “help” to illustrate all the commands you can used through Dynagen. The general commands are “start” and “telnet”.Now we run “start R1” and “telnet R1”. You might notice that there is an alert when you run the command to start R1. When you are running the router without “idle-pc value” configured, the CPU utilization of your computer will keep very high till 100% even only one router instance running.
9. Wait for router R1 has been started until the following message in your Telnet Session, “Would you like to enter the initial configuration dialog? [yes/no]:” . Come back to your Dynagen Window and type the command “idlepc get R1”. You must wait a while and some possible values will be supplied to you.
After you see the information, you can choose the number the system advised. For example, 6 and press Enter. By Windows Task Manager, You can check the CPU utilization when you apply the value to R1. If the CPU utilization is decreased from 100%, then copy the value that you applied, close the Dynagen window and Dynamips Server window.
10. Open your *.net file again and add the idlepc value to it, which is specific for current IOS image. For example,
So far to speak, all the installation and preparation has been finished. We can easily change network topology in the *.net file and simulate various networks following the options in file “all_config_options.txt”.
I do believe there are some guides in the internet which you can follow to use the Dynamips, however, a few my friends are interested on this and I am too lazy to explain It is a draft instead of a real guide, just call it
Dynamips 10 Steps for Dummies
by CiscoSpot
Any distribution is welcome, please feel free to contact net@netap.com
The website you must know if you are going to be a Dynamiper.
Dynamips Official Blog, http://www.ipflow.utc.fr/blog/Dynagen Official website, http://dynagen.org/Winpcap Official website, http://www.winpcap.org/
Step by Step
1. Download Winpcap, http://www.winpcap.org/install/default.htm
2. Download Dynagen,http://sourceforge.net/project/showfiles.php?group_id=160317
3. Install Winpcap.
4. Install Dynagen.
Three shortcuts will appear on your desktop, Dynagen Sample labs (Folder), Dynamips Server, Network device list. Double-click Dynagen Sample labs and you will see a file called “all_config_options.txt”, which is quite useful for you. Open it by Wordpad instead of Notepad and view the options you can utilize in the labs.
Open “Simple lab 1” and right-click the simple1.net then choose “Edit network file”, and choose Wordpad to open it. It is a 7200 platform and there are two routers in the diagram using 160MB ram, respectively. The main configurations inside are as below.
5. Download Cisco IOS for Cisco 3600 serials.Although Dynamics support several Cisco platforms, personally I prefer 3640 when comparing the RAM requirement, modules support and IOS features. You can search IOS resources from internet yourself.
6. Put *.bin file (c3640-jk9s-mz.123-7.T12.bin in this guide) of your Cisco IOS in some folder. For example, D:\Dynamips.7. Copy simple1.net to the folder D:\Dynamips and change the file by Wordpad. You can also change its name to mylab.net, or the others as well. It doesn’t make any sense for the lab. Based on our information described above, we change the network file as below.8. Run “Dynamips Server” on your desktop. Maybe it will be blocked by Windows Firewall. Just Unblock it. Double-click your *.net file such as mylab.net. Use command “help” to illustrate all the commands you can used through Dynagen. The general commands are “start” and “telnet”.Now we run “start R1” and “telnet R1”. You might notice that there is an alert when you run the command to start R1. When you are running the router without “idle-pc value” configured, the CPU utilization of your computer will keep very high till 100% even only one router instance running.
9. Wait for router R1 has been started until the following message in your Telnet Session, “Would you like to enter the initial configuration dialog? [yes/no]:” . Come back to your Dynagen Window and type the command “idlepc get R1”. You must wait a while and some possible values will be supplied to you.
After you see the information, you can choose the number the system advised. For example, 6 and press Enter. By Windows Task Manager, You can check the CPU utilization when you apply the value to R1. If the CPU utilization is decreased from 100%, then copy the value that you applied, close the Dynagen window and Dynamips Server window.
10. Open your *.net file again and add the idlepc value to it, which is specific for current IOS image. For example,
So far to speak, all the installation and preparation has been finished. We can easily change network topology in the *.net file and simulate various networks following the options in file “all_config_options.txt”.
Subscribe to:
Posts (Atom)
