Security hardening cisco switch techspacekh january 29, 2018 to configure aaa, authentication, authorization, and accounting on cisco router, please refer to the following link tacacs+ configuration on cisco switch and router 22 disable unused ports and apply port security. Cisco router hardening step-by-step there are three main categories of routers in use at companies today not brands such as cisco, nortel and juniper, but three types that include internet gateway routers, corporate internal routers and b2b routers. Hardening your router in 9 easy steps for most enterprise lans, the router has become one of the most critical security appliances in use configured properly, it can keep all but the most determined bad guys out, and if you want, it can even keep the good guys in.
The book is an excellent checklist/instructional guide for locking down cisco ios routers and switches it is geared for the novice or intermediate cisco administrator it is quick, concise, (under 200 pages) and each chapter ends with a checklist. 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. Hardening your routers is a great start if your routers are internet facing, then you should also consider securing them further here are two excellent documents for the same.
Mikrotik routers straight out of the box require security hardening like any arista, cisco, juniper, or ubiquiti router some very basic configuration changes can be made immediately to reduce attack surface while also implementing best practices, and more advanced changes allow routers to pass compliance scans and formal audits. Sections 4, 5, and 6 of this guide are designed for use with routers made by cisco systems, and running cisco's ios software the descriptions and examples in those sections were written with the assumption that the reader is familiar with basic cisco router operations and command syntax. Hardening cisco ios-based devices cisco guide to harden cisco ios devices recommended global and interface configurations disable all non-essential services and features. Cisco router, and rout ers deploy ed for internet ac cess in particular first, we will look at how to secure the inter net border rout er from mal icious at tack. Article description hardening a router means that the router is secured against attacks as best as possible this article discusses various means of making sure your routers are set up with maximum security, including manually hardening the router and router hardening with cisco sdm.
Cisco router and switch security hardening guide 1 security hardening checklist for cisco routers/switches 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. By default, cisco routers have three levels of privilege—zero, user, and privileged zero-level access allows only five commands—logout, enable, disable, help, and exit. Hardening cisco routers thomas akin by hardening a router,we make it difficult to penetrate and unyielding under the pressure of attacks this chapter discusses why hardening network routers is one of the most important and overlooked aspects of information security it will talk about. Hardening cisco routers is a reference for protecting the protectors included are the following topics: included are the following topics: the importance of router security and where routers fit into an overall security plan. Here is the my router configuration template modified from team cymru’s without service nagle on a cisco router, each character in a telnet session is a separate cpu interrupt hence, a command such as show tech will force a large number of cpu interrupts, impacting the performance of the routerservice nagleservice tcp-keepalives-inservice tcp-keepalives-out.
Hardening cisco routers by thomas akin stay ahead with the world's most comprehensive technology and business learning platform with safari, you learn the way you learn best. You also grant to cisco a worldwide, perpetual, irrevocable, royalty-free and fully-paid, transferable (including rights to sublicense) right to exercise all copyright, publicity, and moral rights with respect to any original content you provide. Moreover, cisco has a lot of documentation for hardening your ios devices at my client’s site, after configuring the router, we remotely tried pinging, telnetting/ssh and using https to prove that the router won’t respond to the requests. Lab 3: networking and router hardening rich macfarlane 2013 21 details aim: device hardening on cisco routers 22 activities 221 overview of gns3 network simulator gui the gui for gns3 is shown in figure 1, and is divided into four panes by default the panes can be resized, and opened and closed using the view menu the pane on the. The hop count from a router to a directly-connected network is 0 the hop count between two directly-connected routers is 1 when the hop count is greater than or equal to 16, the destination network or host is unreachable.
A compromised router for example can be devastating to the whole security of the enterprise since it can be used to gain access to data, reconfigured to route traffic to other destinations, used to launch attacks to other networks, used to gain access to other internal resources etc. For more information about cisco ios devices, see the cisco guide to harden cisco ios devices secure operations secure network operations is a substantial topic although most of this document is devoted to the secure configuration of a cisco ios xr device, configurations alone do not completely secure a network cisco routers running. Cisco guide to harden cisco ios devices document id: 13608 introduction prerequisites requirements components used the cisco product security incident response team (psirt) creates and maintains publications, commonly netflow can also be used in order to show flow information on a router.
Best practices: device hardening and recommendations russ smoak april 23, 2015 - 0 comments on april 13th, 2015, cisco psirt was made aware of multiple instances of customer disruption in a specific region caused by a denial of service attack against cisco devices. The rational is simple: if the router protecting a network is exposed to hackers, then so is the network behind it this is a reference for protecting the protectors, and author thomas akin supplies all the tools necessary to turn a potential vulnerability into a strength. Read more sumtotal systems vodeclic blog contact. Cisco 810 series, cisco 860 series, cisco 880 series, and cisco 890 series routers cisco 800 series integrated services router hardware installation guide installing memory and power over ethernet in cisco 880 series and cisco 890 series integrated services routers.
The checklists help you double-check the configurations you have been instructed to make, and serve as quick references for future security proceduresconcise and to the point, hardening cisco routers supplies you with all the tools necessary to turn a potential vulnerability into a strength. Hardening access layer switches / security hi all can anyone give me some tips for hardening my cisco 2960s for the access layer, i wont be using switchport security, i want some best practices, ie ssh, stp etc etc.