Monitor Cisco Security Advisories and Responses These topics highlight specific critical areas of network operations and are not comprehensive. These topics contain operational recommendations that you are advised to implement. The operational procedures in use on the network contribute as much to security as the configuration of the underlying devices. Although most of this document is devoted to the secure configuration of a Cisco IOS XE device, configurations alone do not completely secure a network. Secure network operations is a substantial topic. Where possible and appropriate, this document contains recommendations that, if implemented, help secure a network. However, in cases where it does not, the feature is explained in such a way that you can evaluate whether additional attention to the feature is required. The coverage of security features in this document often provides enough detail for you to configure the feature. The data plane does not include traffic that is sent to the local Cisco IOS XE device.
The three functional planes of a network management plane, control plane, and data plane each provide different functionality that needs to be protected. Structured around the three planes into which functions of a network device can be categorized, this document provides an overview of each included feature and references to related items. If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment.
#Cisco ios software#
This document is not restricted to specific software and hardware versions. There are no specific requirements for this document. Retrieved 3 August 2017.This document describes information to secure your Cisco IOS® XE system devices, which increases the overall security of your network documentation. ^ "Cisco IOS XE Open Service Containers" (PDF).
#Cisco ios series#
^ "Catalyst 4500 Series Switch Software Configuration Guide".^ "Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide"."Now a Look at Cisco IOS XE for the ASRs". ^ "Cisco IOS XE Software for Cisco ASR 1000 Series Routers".^ "Logging into a Linux shell from a Cisco ASR1000 Series Router"."Cisco's ASR 1000 router built for 10-year tenure". Another example is the Cisco IOS XE Open Service Containers. Since IOS XE has IOSd running as an application on top of Linux, it becomes possible to also run different applications on the hardware, a good example of this is running Wireshark on a switch.
#Cisco ios code#
While IOS XE (IOSd) and IOS share a lot of the same code, IOS XR is a completely different code base. On the other hand, IOS XR is based on QNX (since version 5.0 it's also based on linux), where the IOSd application has been separated into many different applications. Differences between IOS and IOS XE Ĭisco IOS is a monolithic operating system running directly on the hardware while IOS XE is a combination of a Linux kernel and a monolithic application (IOSd) that runs on top of this kernel. IOS XE is released separately for ASR 1000 and Catalyst 3850. Since it runs a copy of IOS, all CLI commands are the same between Cisco IOS and IOS XE, in contrast to IOS XR, which has a completely different code base and whose developers implemented a different CLI command set. It is built on Linux and provides a distributed software architecture that moves many operating system responsibilities out of the IOS process and has a copy of IOS running as a separate process. IOS XE is a release train of Cisco Systems' widely deployed Internetworking Operating System (IOS), introduced with the ASR 1000 series. Some Cisco routers (such as ASR 1000) and some Catalyst switches (such as 3850) Operating system for network equipment Cisco IOS XE Developerīengaluru 17.6.1 / July 30, 2021 2 years ago ( )
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