Notes from running a MikroTik network
Deeper dives that don't fit inside a generator page or a setup guide — security, IP planning, RADIUS, and the operational lessons that show up once you're past a handful of subscribers.
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TOOLKIT
25+ MikroTik, ISP, and WISP Tools for Real Network Work
A connected collection for PPPoE, RADIUS, IP planning, DHCP, CGNAT, QoS, VLAN, firewall, IPv6, WireGuard, and wireless links — with explanations and verification steps.
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TROUBLESHOOTING
RADIUS Server Not Responding on MikroTik RouterOS v7
Separate PPPoE discovery, routing, UDP, firewall, shared-secret, authentication, and accounting failures with a one-test-at-a-time checklist.
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CONFIGURATION
PPPoE Server MikroTik Configuration Script for RouterOS v7
Build and verify a reviewable PPPoE access concentrator with an IP pool, PPP profile, RADIUS AAA, accounting, and safe rollout checks.
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SECURITY
Securing MikroTik Routers Against Common Attacks
A practical checklist for closing the ports that get scanned constantly, plus the five changes that actually stop most compromises.
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COMPARISON
PPPoE vs Hotspot: Which Should Your WISP Use?
A side-by-side comparison to help you pick the right subscriber access model.
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NETWORK PLANNING
IP Address Planning for a Growing WISP
How to lay out subnets, pools, and CGNAT ranges before running out of room.
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RADIUS & BILLING
RADIUS Explained for ISP Operators
SAS4, GalaxyRAD, and freeRADIUS — what each does differently, and how to choose.
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BACKHAUL & CONNECTIVITY
Satellite Internet as WISP Backhaul: Living With CGNAT
What Carrier-Grade NAT means for remote management, and how to work around it.