LanTopoLog: Simple Network Mapping Without the Bloat
LanTopoLog is a lightweight tool built for a very specific purpose — discovering network topology using SNMP and drawing maps based on real switch port data. It’s not a monitoring suite. It won’t flood you with metrics or graphs. Instead, it gives a clean and functional view of how your network is physically wired.
Ideal for small to mid-sized networks where visibility is limited and documentation is outdated, LanTopoLog offers a quick way to visualize your switch connections, MAC address tables, and VLAN setups — without relying on agents or cloud services.
What It Does Well
| Feature | Why It’s Useful |
| SNMP-based discovery | Detects switch connections and connected devices by querying SNMP data |
| Automatic topology maps | Builds real-time maps based on physical port connections |
| Port-to-host mapping | Correlates MAC addresses with switch ports and hostnames |
| No database required | Runs as a standalone Windows app — portable and easy to use |
| Syslog integration | Receives syslog events from supported devices |
Where It Fits
Small IT departments that need quick topology visibility
Networks with many unmanaged or legacy switches
Situations where switch CLI access is not available
Offline audits of cable tracing and port assignments
LanTopoLog isn’t trying to replace NetBox or enterprise DCIM platforms. It’s built for people who just want to know what’s connected where — and need that answer right now, without setting up a server or database.