This widespread distribution, as well as its architectural deficiencies, makes it a valuable target for hackers looking to attack a corporate or private network infrastructure. Our free, online, selfpaced ccna training teaches students to install, configure, troubleshoot and operate lan, wan and dial access services for mediumsized networks. Of course setting passwords does add to the security of the device but there is small problem. Behavior of cisco discovery protocol between routers and. Consumer routers are a small topic of research in the area of router forensics. Hence only the users that are physically connected to the router console port can view these messages. How to troubleshoot common routers and switches issues.
Apr 26, 2020 also, keep a secure copy of the router operating system image and router configuration file as a backup. Reauthentication button does not show even after enabling it through webui 31jul2014. The standard process involves using issuing the show commands and collecting data such as logs and network activity data. Security hardening checklist guide for cisco routers. Most of the research has been done on the cisco ios system, and on networks and network devices in general. Well use the secure shell application, ssh, for remote access and log in the l option as remoteuser. This innovative sevenday boot camp is designed specifically for network engineers and administrators requiring full knowledge of cisco router and switch configuration.
We would like to show you a description here but the site wont allow us. Cisco router and switch forensics cern document server. Cisco web security troubleshooting technotes cisco. Investigating and analyzing malicious network activity at.
Mar 18, 2014 the basics of router forensics are collecting data from the device that can act as evidence. Investigating and analyzing malicious network activity. Our examples in the pages that follow covering cisco router modes make use of a cisco router with an isdn interface. This exam tests a candidates knowledge and skills related to network fundamentals, network access, ip connectivity, ip services, security fundamentals, and automation and programmability.
While examples provided in this article are identical to pretty much any ios version, we are taking version 12. Cisco catalyst compact switch cisco isr g1 the cisco isr g1, including cisco 1800, 2800, and 3800 routers, introduced in 2006, is still a popular and well performing router series. After i submit a url via cisco web access control submission tool and select suggested category, will the suggested. Cisco router login problem thanks for posting back to the forum and letting us know that the problem was on your laptop and not a configuration problem on the router. The configure navigation menu has four options, smartports, port settings, express setup, and restartreboot. The configuraton menu is available from the dashboard which is the tools main page. Security hardening checklist guide for cisco routersswitches. Threats to and attacks on routers scnd cisco certified expert. Based on the type of router you mentioned, one can infer that it is used in a small business, which likely means, the. Dale liu, in cisco router and switch forensics, 2009. The bestknown example application is for remote login to computer systems by users.
By default, the router sends all log messages to its console port. This document describes the behavior of cisco discovery protocol cdp between a router and a switch that run cisco ios cdp is cisco proprietary layer 2 protocol that is media and protocol independent, and runs on all ciscomanufactured equipment. Five ways to secure your cisco routers and switches by david davis in data center, in networking on april 2, 2008, 11. Also, keep a secure copy of the router operating system image and router configuration file as a backup. Cisco router and switch security hardening guide 1. A series 2800 cisco router has 64mb or 128mb of flash memory and 256mb of dram memory. Purchase cisco router and switch forensics 1st edition. Investigating and analyzing malicious network activity repost 20111227 cisco router and switch forensics. Five ways to secure your cisco routers and switches. Ccna training boot camp with dual certification infosec. In addition any of these slots may be customised with. Router and switch security basics linkedin learning. This menu gives you access to the main settings that you will.
Dale liu cisco ios the software that runs the vast majority of cisco routers and all cisco network switches is the dominant routing platform on the internet and corporate networks. I cant see anyone in the forensics field willing to give the time of day to perform any forensics work on a soho router the cost of going through the motions of performing a forensicsdata recovery would be very expensive. Sans digital forensics and incident response blog cisco. You should understand that you have to put in some countermeasures to prevent hackers and penetration testers from simply rolling into your router and taking it over. Routing protocol authentication and verification with message digest 5. Global configuration mode an overview sciencedirect topics.
So, now you are at the controls of a powerful configuration mode for your router. They arent for traffic passing through the router, but, rather for packets destined to the router or from the router. Examining wireless access points and associated devices. Otherwise, this is a good article, especially the part about core analysis. If you are studying cisco networking and learning about how businesses use these devices, you may be wondering why there is so much importance on the differences between a. Youll gain handson experience by completing a series of labs in our networking cyber range. All the passwords configured on the cisco device except the enable secret are shown as clear text in the configuration file. Additionally, the cisco ios as perhaps the most universal feature set. Investigating and ing malicious network activity dale liu lead author and technical editor james burton thomas millar tony fowlie kevin oshea paul a. Cisco certified network associates ccnas and other qualified network administratorsshould know how to prevent attacks by securing networking devices. Agenda introduction overview of routers router attack topology common router attacks performing forensics incidence investigation accessing the router documentation what are the bad guys doing what are the good guys doing why do we need to protect router resources why do we need outer forensics. A router is a device generally used for networking which is used for forwarding the data packets flanked by various computer networks thus creating an overlay inter connected network because a single router is linked with various data lines on different networks. As you progress through your ccna exam studies in your lab, i am sure you will need to refer back to this article at some point to figure out what each type of paassword used for in. Download for offline reading, highlight, bookmark or take notes while you read cisco router and switch forensics.
The prompt also tells us another thing, where in the different hierarchical modes of the switch we are. Cisco certified network associates ccnas and other. Szewczyk performed multiple studies about this topic. Ccna course, prep for ccna certification online cybrary. As law enforcement, we must be aware that while conducting search warrants or furthering an investigation, all associated wireless devices are located. Investigating and analyzing malicious network activity ebook written by dale liu.
In the past year, henry has focused on architectural design and implementation in cisco internal networks across australia and the asiapaci. We have seen how to set passwords on cisco switches or routers here. Ccna cisco certified network associate study guide, 7th. Cisco ios the software that runs the vast majority of cisco routers and all cisco network switches is the dominant routing platform on the internet and corporate networks. Investigating and analyzing malicious network activity ebook. Short and complete guide to configure ssh on cisco router and switch for secure remote connection.
He has more than 10 years of experience in cisco networks, including planning, designing, and implementing large ip networks running igrp, eigrp, and ospf. Many of these services are unnecessary and may be used by an attacker for information gathering or for exploitation. If you have telnet access, you can try checking your backup logs in the event you didnt know they existed if youre running the merlin firmware. Create vlan 10, vlan 20, and vlan 30 and assigns interfaces to each of them. For switches that support booting from sdflash, security can be enhanced by booting from. A malicious person that gains access to a switch or router can modify system integrity to steal information or disrupt communications. Ndustrial routers cisco 2000 series connected grid routers cisco series connected grid routers cisco 900 series industrial routers cisco 800 series industrial integrated services routers cisco 500 series wpan industrial routers cisco wireless gateway for lorawan integrated. Cisco switch configuration using web console dummies. Cisco router and switch forensics 1st edition elsevier. Cisco router and switch forensics ebook by dale liu. How to configure logging in cisco ios cisco community.
In global config mode, the cisco cli receives oneline commands and parses them for proper syntax. Cisco ios the software that runs the vast majority of cisco routers and all cisco network switches is the dominant routing platform on the. Because criminals are targeting networks, and network devices. As you progress through your ccna exam studies in your lab, i am sure you will need to refer back to this article at some point to figure out what each type of paassword used for in your cisco certification studies as it can be confusing at first. The gui tool, web console is provided to assist you in configuring your cisco switches. Investigating and analyzing malicious network activity dale liu on. When things do not work as expected we tend to start with an assumption that there is a problem on our router. Wccp session to the router switch up, but browsing not happening due to route issues 12aug2014 wccp with authentication and multiple wsas causes a loop acl required to limit client access oct2014. Agenda introduction overview of routers router attack topology common router attacks performing forensics incidence investigation accessing the router documentation what are the bad guys doing what are the good guys doing why do we need to protect router resources why do we. The isdn interface is configured to make a dialup connection to an isp.
The role of a router routers are found at layer three of the osi model. Additionally, the cisco ios as perhaps the most universal feature set comprehensively covering many options. List all the current cisco router, switch and firewall models. In order to encrypt the clear text passwords and obscure them from showing in the configuration file, use the global command service passwordencryption. Threats to and attacks on routers cisco certified expert. Configuration mode an overview sciencedirect topics. Cisco router and switch forensics by liu, dale ebook. This is primarily because cisco has the greatest market share internetbased routers. The addition of stateful packet filtering all stateful inspection and a wide range of protocols that are supported dependent on licensing make cisco. Jun 03, 2009 cisco router and switch forensics is the first book devoted to criminal attacks, incident response, data collection, and legal testimony on the market leader in network devices, including routers, switches, and wireless access points.
The basics of router forensics are collecting data from the device that can act as evidence. The secure shell ssh is a cryptographic network protocol for operating network services securely over an unsecured network. Pdf including network routers in forensic investigation. The labs provide practical experience in a networking and switching environment. Router forensics information security stack exchange. Security hardening checklist for cisco routersswitches in 10 steps network infrastructure devices routers, switches, load balancers, firewalls etc are among the assets of an enterprise that play an important role in security and thus need to be protected and configured accordingly.
Cisco certified network associates ccnasand other qualified network administratorsshould know how to. The commands arent as useful for forensics as they would be if they really did show info about packets going through the router. Wireless access for the home has become the preferred choice of connecting computers to the internet. I cant see anyone in the forensics field willing to give the time of day to perform any forensics work on a soho router, so you would be wasting a lof of time. Ebook cisco ccna lab guide flackbox pdf download free. Cisco router and switch forensics by dale liu overdrive. Cisco router and switch forensics is the first book devoted to criminal attacks, incident response, data collection, and legal testimony on the market leader in network devices, including routers, switches, and wireless access points. Jul 15, 2016 cisco router and switch security hardening guide 1. Logging can use for fault notification, network forensics, and security auditing. Cisco ios, commandline interface, encryption, password, router, secure shell, security, telnet. Many network administrators overlook the importance of router logs.
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