CiscoConfParse Tutorial

This tutorial will cover the features that most CiscoConfParse users care about. We make a couple of assumptions throughout this tutorial…

• You already know Python

• You (naturally) have a basic understanding of Cisco IOS

Contents:

• Getting Config Values with CiscoConfParse
  • Intro to BaseCfgLine
    • BaseCfgLine has .parent and .children attributes
  • String methods
  • Regular expressions
  • re_match_typed(): Get a value from an object
  • re_match_iter_typed(): Iterate over all children and get a value
  • Getting multiple values from an interface with re_list_iter_typed()
• CiscoConfParse Fundamentals: Using Parent / Child Relationships
  • IOS Parent-child relationships
    • Example: Retrieving text from an IOSCfgLine object
  • Baseline configuration for these examples
  • Example Usage: Finding interface names that match a substring
  • Example Usage: Finding parents with a specific child
    • find_parent_objects()
  • Example Usage: Finding parents without a specific child
• ciscoconfparse2 Configuration branches
• Example Usage: Build configuration diffs
  • Baseline Configurations
    • bucksnort_before.conf
    • bucksnort_after.conf
  • Diff Script
  • Rollback Script