name: Cisco IOS Logs
id: 9e4c8d7b-6f5e-4a3d-b2c1-0a9b8c7d6e5f
version: 1
date: '2025-08-21'
author: Michael Haag, Splunk
description: Data source object for Cisco IOS system logs. Cisco IOS logs provide
  operational and security telemetry from Cisco network devices (IOS, IOS XE, IOS
  XR, NX-OS, WLC, and APs). The Cisco Networks Add-on for Splunk (TA-cisco_ios) normalizes
  these events by setting proper sourcetypes and extracting fields for switches, routers,
  controllers, and access points; deploy the TA on indexers/HFs and search heads,
  and the Cisco Networks (cisco_ios) App on search heads. Supported platforms include
  Catalyst, ASR, ISR, Nexus, CRS, and other IOS-based devices, enabling consistent
  investigation, alerting, and reporting in Splunk Enterprise and Splunk Cloud. This
  data is ingested via SYSLOG.
source: cisco:ios
sourcetype: cisco:ios
separator: null
supported_TA:
- name: Cisco Networks Add-on
  url: https://splunkbase.splunk.com/app/1467
  version: 2.7.9
fields:
- _time
- aci_message_text
- action
- app
- authenticator
- bytes
- change_type
- cipher
- cisco_header
- command
- config_source
- date_hour
- date_mday
- date_minute
- date_month
- date_second
- date_wday
- date_year
- date_zone
- dest
- dest_interface
- dest_mac
- dest_port
- device_time
- direct_ap_mac
- dvc
- event_id
- eventtype
- facility
- hmac
- host
- index
- line
- linecount
- message_text
- mnemonic
- product
- punct
- reliable_time
- severity
- severity_description
- severity_id
- severity_id_and_name
- severity_name
- source
- sourcetype
- splunk_server
- splunk_server_group
- src
- src_interface
- src_ip
- src_mac
- subfacility
- tag
- tag::action
- tag::app
- tag::eventtype
- timeendpos
- timestartpos
- transport
- tty
- type
- user
- vendor
- vendor_action
- vlan
output_fields:
- user
- dest
example_log: 'Aug 20 17:10:21.639: %AAA-6-USERNAME_CONFIGURATION: user with username:
  attacker configured Aug 20 17:10:21.664: %AAA-6-USER_PRIVILEGE_UPDATE: username:
  attacker privilege updated with priv-15 Aug 20 17:10:21.665: %PARSER-5-CFGLOG_LOGGEDCMD:
  User:ec2-user logged command:username attacker privilege 15 secret * Aug 20 17:10:21.665:
  %PARSER-5-CFGLOG_LOGGEDCMD: User:ec2-user logged command:!config: USER TABLE MODIFIED'