Every internet service provider sits on a firehose of connection records. IP log management is the discipline of capturing those records reliably, storing them safely, and being able to answer one deceptively simple question at any moment: who was using this IP address at this time?
The record you're required to keep
When a subscriber's device opens a connection, the router sees a flow: a source IP and port, a destination, a MAC address, and — behind it all — the PPPoE account that owns the session. In Bangladesh, the BTRC requires ISPs to retain this activity and produce it on demand. That means the record has to be complete (PPPoE ID, MAC, source and NAT IP, ports, precise timestamps), tamper-resistant, and retained for the mandated window.
Get any part of that wrong and the log is worthless when it's needed most — during an investigation or an audit, when you can't go back and re-capture what already happened.
Why it's harder than it sounds
At ISP scale the volume is enormous. A network of 20,000 subscribers can generate tens of millions of flow records a day. A naïve log store fills disks in weeks and grinds to a halt the first time someone runs a real search. So IP log management is really three problems at once:
- Capture — record every flow, enriched with the subscriber behind it, without dropping lines under load.
- Storage — keep months of it affordably, which means serious compression, not raw text files.
- Retrieval — find one subscriber's session among billions of rows in seconds, not hours.
What "good" looks like
A healthy IP log system captures in real time, resolves any IP-and-moment back to a subscriber, and hands you a clean, timestamped export you can give a regulator without editing. It stays fast as history grows, and it's honest about retention — you should know exactly how far back you can answer.
That's the bar InfinityLog is built to clear: real-time capture from your Mikrotik, cutting-edge storage at roughly 16 bytes per event, and sub-second search across a full day of traffic.