Feature
IP Address Management
Track every IP, subnet, and VLAN without conflicts or surprises.
Subnet Planning
Your address space, structured as a tree.
Subnet hierarchy
Define your IP space as a tree of subnets, from /16 down to individual /32s, and always know how much space is available.
Allocate with intent
Reserve blocks by site, team, or purpose, so the structure of your address space tells a story.
Utilization at every level
Drill down from a parent block to its subnets and see consumption at each level of the tree.
Subnets · Singapore DC
Site
3 subnetsSingapore DC
10.0.1.0/24Web Tier
63/252
10.0.2.0/24DB Tier
104/252
10.10.0.0/16Management
32/252
VRF: ProdVLAN: 100
Address Tracking
Every address has a story.
Status for everything
Know what is static, what is DHCP, what is reserved, and what is available at a glance.
Assignment and context
Each address carries an assignment and description, so you never cross-reference three documents.
Find free space instantly
When you need an address in a specific subnet, the answer is one search away.
IP Addresses · 10.0.1.0/24
Subnet
63% used10.0.1.0/24
10.0.1.12
Switch-CORE1 · eth0
10.0.1.34
Server-PP4 · eth0
10.0.1.50
Reservation · future LB
10.0.1.51
Unassigned
VRF & VLAN
Segmentation and routing, one view.
VRF modeling
See which subnets live in which VRFs and how routing domains stay isolated.
VLAN mapping
Track how VLANs map across your network alongside your IP space.
The full picture
Not just a list of addresses, but the complete Layer 2, Layer 3, and routing context.
Segmentation
VRFs & VLANs
VRFS
Prod-VRF
Mgmt-VRF
VLANS
100
ActiveWeb Tier
200
ActiveDB Tier
400
ActiveManagement
How it compares
Here is how Obelinf stacks up against the usual alternatives.
| Feature | Spreadsheets | phpIPAM | NetBox | SolarWinds IPAM | ObelinfOur pick |
|---|---|---|---|---|---|
| Subnet hierarchy | No | Yes | Yes | Yes | Yes |
| CIDR conflict prevention | No | Partial | Partial | Detected | Prevented by design |
| Duplicate IP prevention | No | Partial | Partial | Detected | Prevented by design |
| Utilization at every level | Manual | Yes | Yes | Yes | Live |
| Address status tracking | Manual | Yes | Yes | Yes | Built-in |
| VRF modeling | No | Partial | Yes | No | Yes |
| VLAN tracking | No | Yes | Yes | Yes | Yes |
| IP groups & folders | No | No | No | Yes | Built-in |
| Full-text search | No | Yes | Yes | Yes | Full-text + palette |
| API access | No | Basic REST | REST API | REST API | REST API + MCP |
| Audit trail | None | Basic logs | Change log | Yes | Immutable, field-level |
| Setup time | Instant, then stale | Hours | Hours to days | Days | Minutes |
| Cost | Free (your time) | Free, self-hosted | Free, self-hosted | Per-license | Free to $299/mo |