Investigating and analyzing malicious network activity. Create vlan 10, vlan 20, and vlan 30 and assigns interfaces to each of them. Global configuration mode an overview sciencedirect topics. 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. Reauthentication button does not show even after enabling it through webui 31jul2014. Router and switch security basics linkedin learning. Examining wireless access points and associated devices. As law enforcement, we must be aware that while conducting search warrants or furthering an investigation, all associated wireless devices are located. 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. Ebook cisco ccna lab guide flackbox pdf download free. This innovative sevenday boot camp is designed specifically for network engineers and administrators requiring full knowledge of cisco router and switch configuration.
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. The role of a router routers are found at layer three of the osi model. Szewczyk performed multiple studies about this topic. Behavior of cisco discovery protocol between routers and. Investigating and analyzing malicious network activity ebook. All the passwords configured on the cisco device except the enable secret are shown as clear text in the configuration file. Sans digital forensics and incident response blog cisco. Security hardening checklist guide for cisco routers. The secure shell ssh is a cryptographic network protocol for operating network services securely over an unsecured network.
Threats to and attacks on routers scnd cisco certified expert. Cisco router and switch forensics cern document server. Additionally, the cisco ios as perhaps the most universal feature set comprehensively covering many options. The bestknown example application is for remote login to computer systems by users. Also, keep a secure copy of the router operating system image and router configuration file as a backup. 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. Security hardening checklist guide for cisco routersswitches.
Investigating and analyzing malicious network activity repost 20111227 cisco router and switch forensics. In addition any of these slots may be customised with. 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. Routing protocol authentication and verification with message digest 5. This exam tests a candidates knowledge and skills related to network fundamentals, network access, ip connectivity, ip services, security fundamentals, and automation and programmability. 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.
Mar 18, 2014 the basics of router forensics are collecting data from the device that can act as evidence. 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. Cisco ios the software that runs the vast majority of cisco routers and all cisco network switches is the dominant routing platform on the. Cisco router and switch security hardening guide 1. 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. For switches that support booting from sdflash, security can be enhanced by booting from.
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. The basics of router forensics are collecting data from the device that can act as evidence. After i submit a url via cisco web access control submission tool and select suggested category, will the suggested. 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 need outer forensics. Investigating and analyzing malicious network activity at. Our examples in the pages that follow covering cisco router modes make use of a cisco router with an isdn interface. 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. Cisco certified network associates ccnas and other qualified network administratorsshould know how to prevent attacks by securing networking devices. They arent for traffic passing through the router, but, rather for packets destined to the router or from the router. A malicious person that gains access to a switch or router can modify system integrity to steal information or disrupt communications. The addition of stateful packet filtering all stateful inspection and a wide range of protocols that are supported dependent on licensing make cisco. Many of these services are unnecessary and may be used by an attacker for information gathering or for exploitation.
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. Five ways to secure your cisco routers and switches by david davis in data center, in networking on april 2, 2008, 11. Cisco router and switch forensics ebook by dale liu. Cisco web security troubleshooting technotes cisco. Ccna course, prep for ccna certification online cybrary. This menu gives you access to the main settings that you will. Otherwise, this is a good article, especially the part about core analysis. Of course setting passwords does add to the security of the device but there is small problem. 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. The labs provide practical experience in a networking and switching environment.
Hence only the users that are physically connected to the router console port can view these messages. 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. 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. Because criminals are targeting networks, and network devices. Threats to and attacks on routers cisco certified expert. When things do not work as expected we tend to start with an assumption that there is a problem on our router. Most of the research has been done on the cisco ios system, and on networks and network devices in general. Apr 26, 2020 also, keep a secure copy of the router operating system image and router configuration file as a backup. Ccna training boot camp with dual certification infosec. We have seen how to set passwords on cisco switches or routers here. Short and complete guide to configure ssh on cisco router and switch for secure remote connection.
Well use the secure shell application, ssh, for remote access and log in the l option as remoteuser. 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. Cisco certified network associates ccnasand other qualified network administratorsshould know how to. The standard process involves using issuing the show commands and collecting data such as logs and network activity data. We would like to show you a description here but the site wont allow us. Cisco certified network associates ccnas and other. How to troubleshoot common routers and switches issues. The configure navigation menu has four options, smartports, port settings, express setup, and restartreboot. While examples provided in this article are identical to pretty much any ios version, we are taking version 12. Dale liu, in cisco router and switch forensics, 2009. Cisco ios, commandline interface, encryption, password, router, secure shell, security, telnet.
Based on the type of router you mentioned, one can infer that it is used in a small business, which likely means, the. This is primarily because cisco has the greatest market share internetbased routers. In global config mode, the cisco cli receives oneline commands and parses them for proper syntax. Consumer routers are a small topic of research in the area of router forensics. The gui tool, web console is provided to assist you in configuring your cisco switches. 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. Additionally, the cisco ios as perhaps the most universal feature set. 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. So, now you are at the controls of a powerful configuration mode for your router. Cisco router and switch forensics 1st edition elsevier. Router forensics information security stack exchange.
The configuraton menu is available from the dashboard which is the tools main page. Pdf including network routers in forensic investigation. The isdn interface is configured to make a dialup connection to an isp. How to configure logging in cisco ios cisco community. Download for offline reading, highlight, bookmark or take notes while you read cisco router and switch forensics.
In the past year, henry has focused on architectural design and implementation in cisco internal networks across australia and the asiapaci. Jul 15, 2016 cisco router and switch security hardening guide 1. The commands arent as useful for forensics as they would be if they really did show info about packets going through the router. Ccna cisco certified network associate study guide, 7th. Purchase cisco router and switch forensics 1st edition. Cisco router and switch forensics by dale liu overdrive. Five ways to secure your cisco routers and switches.
Cisco switch configuration using web console dummies. Wireless access for the home has become the preferred choice of connecting computers to the internet. Investigating and analyzing malicious network activity ebook written by dale liu. Cisco router and switch forensics by liu, dale ebook. The prompt also tells us another thing, where in the different hierarchical modes of the switch we are. 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. A series 2800 cisco router has 64mb or 128mb of flash memory and 256mb of dram memory.
Investigating and ing malicious network activity dale liu lead author and technical editor james burton thomas millar tony fowlie kevin oshea paul a. Logging can use for fault notification, network forensics, and security auditing. Investigating and analyzing malicious network activity dale liu on. Configuration mode an overview sciencedirect topics.
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