Shutdowning, in other words, disabling a port is very easy. Cisco ios security command reference browse all support information for cisco ios release 12. For security purposes, the cisco ios software provides two levels of access to. Basic router configuration this module provides configuration procedures for cisco 3900 series, cisco 2900 series, and cisco 1900 series integrated services routers isrs. Rj45 serial console port for command line interface. For security reason, we should always disable unused interface on router. Complete booklevel pdfs are generated periodically and therefore may not reflect the latest updates to documentation as contained in the chapterlevel html or pdf documents. Essential cisco ios commands internetwork training.
For a router basic security configuration, the first step is shutdowning all the unused ports. Make sure to download the cheat sheet in pdf format for future reference by subscribing above. Each command mode provides a different group of related commands. All settings that we have made in this article will erase once the router reboot. Cisco router commands cheat sheet cisco asa firewall commands cheat sheet the following commands will work on most cisco switch models such as 4500, 3850, 3650, 2960, 3560 etc. Cisco ios router configuration commands cheat sheet pdf. Cisco ios security configuration guide, release 12. Note see appendix a, cisco ios cli for initial configuration for information on how to perform the initial configuration using the cisco internet operating system ios command line interface on cisco 3900. Only local bangalore candidates need to applynn will handle the tasks of contributing ideas for developing ongoing process and workflow perform router switch and modem reconfiguration and configuration of new routers on the network monitor and control configuration aspects like ip address subnet mask followup with vendors and client calls and. This cisco commands cheat sheet in pdf format will show you many cisco cli. Control plane policing, neighborhood router authentication.
Ithardware and networking wisdom jobs rssxml feeds. Cisco ios configuration fundamentals command reference. Guideline on securing cisco routers national computer board. It also includes configuration examples and verification steps whenever possible.