N e t d i s c o

http://netdisco.org/Netdisco_Resnet_2004.pdf (.ppt) Intro ► Welcome Intro What is Netdisco? History Details Features Requirements Device Support Future Q+A Vendor: “We offer a wealth of functionality!” J. Warner: “We call that rope.” http://netdisco.org/Netdisco_Resnet_2004.pdf (.ppt)

Intro ► What is Netdisco? Open Source Software Network Management Switch Port Management Inventory Usage History and Security Product of UC Santa Cruz

Intro ► Node Search

Intro ► Motivation Problem Users on a Resnet? History of Port and IP Usage Inventory of Network Devices Network Debugging & Monitoring Easy to use

Intro ► History May 16, 2003 – First Public Release on Source Forge Dec 30, 2002 – SNMP::Info Released to CPAN Oct, 2002 – Coding Begins April, 2002 – Booloo wants a MAC finder Oct, 2001 – arpnip and macsuck “Does netdisco ever feel like a really bad porn movie to you too?” – Mike Hunter, UC Berkeley

Intro ► Sources of Info MAC Address  Switch Port Number Switch: “Computer 08:08:08:e0:e0:00 lives on Port 5.” IP Address  MAC Address Router: “IP Address 216.200.40.145 is being used by 08:08:08:e0:e0:00.” IP Address  DNS Name DNS Server: “Address 216.200.40.145 is netdisco.org.”

Intro ► L2 vs. L3 (L2) Layer-Two - Ethernet MAC address Switches, Hubs 08:08:08:e1:e1:00 (L3) Layer-Three - IP Address Routers, Firewalls 216.200.40.145

Intro ► Topology Info A C B Netdisco: You know where the computer for our Action Hero lives? Switch C: Yeah, right here on my uplink port! Netdisco: Cool! Where does that go? Switch C: Switch B Port X!

Intro ► Uplink Ports How to identify an Uplink Port L2 Topology Protocol Cisco Discovery Protocol – CDP Look for ports with lots of devices Look for MACs of Switches Keep a list Bell-Labs Paper: Topology Discovery in Heterogeneous IP Networks http://www.bell-labs.com/user/minos/Abstracts/infocom00-abs.html Bell-Labs Paper: Physical Topology Discovery for Large Multi-Subnet Networks http://www.bell-labs.com/user/minos/Abstracts/infocom03-abs.html

Details Features Requirements Architecture Device Support “Features”

Details ► Features Switch Ports MAC  IP  Switch Port Ports with lots of IP or MAC Addresses in use Central location to disable Ports

Details ► Features Network Security and Maintenance L2 Traceroute Duplex Mismatch Finder Wireless Access Point (AP) Finder

Details ► Features Reporting Pretty Map IP Address usage History Network Inventory by IOS, Vendor, Model, Subnet

Details ► Features ► Port View

Details ► Features ► Port Control

Details ► Features ► Port Log

Details ► Requirements Computer (P3 / 500M / 10G / Fast I-O ) Operating System (Linux, xBSD, OS/X) Software* Admin (Unix guru advised) Network (Cisco favored) Time (LOTS) Text Editor *netdisco, Perl, Mason, Net-SNMP, PostgreSQL, Apache 1, mod_perl, mod_ssl, GraphViz, MIBs

Details ► Architecture Front-End Back-End Apache Web Server Shared Library SNMP::Info Cron Mason Components Database Main EXE Admin Daemon SNMP Netdisco Browser Switches and Routers

Details ► Device Support Cisco HP Bay Foundry Allied Asante Zyxel http://snmp-info.sourceforge.net/DeviceMatrix.html

Details ► Device Support SNMP::Info Supports all SNMP devices Easily extendable Baseline compatibility with MIB-ii Vendor-Specific Extensions Attach MIBs to device families

Details ► “Features” INSTALL Process PostgreSQL Performance feature (n) - a prominent aspect of something INSTALL Process PostgreSQL Performance Problem Device Families

The Future of Netdisco Future Features Maintenance Packaged Version discograph – MRTG / Cricket / NRG type thingy MySQL Port Maintenance Packaged Version

Q+A NOW ACCEPTING QUESTIONS* For more info visit: Demo Site: http://netdisco.org Demo Site: http://netdisco.org/demo *(Answers not Guaranteed)