One small subnet
A short list of known systems can remain easy to read.
Excel or IPAM
Managing IP addresses in Excel: when is IPAM worth it?
A simple sheet can reliably document a few fixed IP addresses. With several subnets, reservations, devices or IPv6, maintaining usage and relationships manually takes more effort.
Practical documentation
When a spreadsheet is enough
One maintainer
Clear ownership reduces parallel versions.
Rare changes
Static assignments require little coordination.
When lists become difficult
Several subnets, available and assigned addresses, reservations and exclusions quickly create more columns or files. Links to devices and networks must be maintained consistently by hand.
What IPAM adds
IPAM views addresses within their subnet. It can distinguish known assignments, reservations and exclusions while representing IPv4 and IPv6 consistently.
IPAM embedded in OTTRORA
OTTRORA connects address management to networks, sites and devices. The address record remains part of the IT inventory rather than another isolated list.