Use Case
IP Address Planning
Plan, allocate, and track IP space across your network without conflicts.
Subnet Planning
Plan your IP space without conflicts.
CIDR subnets
Create subnets with CIDR notation, gateway, description, and optional VRF and VLAN associations.
Live utilization
Every subnet shows how many IPs are consumed versus available, so you never run out without warning.
Linked to sites
Every prefix is anchored to a physical or logical location for easy audit and navigation.
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 IP, accounted for.
Assign or reserve
Tie addresses to devices or VMs, mark them reserved, or leave them unassigned for future use.
Rich context
Each address stores a hostname and description, and lists which device owns it and in which subnet.
Pool-based allocation
IP groups define named ranges for structured, conflict-free address allocation.
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
Layer 2 and Layer 3, one view.
VRF isolation
Route distinguishers keep routing domains isolated and explicitly tracked.
VLAN modeling
VLANs and VLAN groups model Layer 2 segmentation across your network.
Full stack mapping
Subnets associate with both a VRF and a VLAN for a complete L2, L3, and routing picture.
Segmentation
VRFs & VLANs
VRFS
Prod-VRF
Mgmt-VRF
VLANS
100
ActiveWeb Tier
200
ActiveDB Tier
400
ActiveManagement
How it compares
Everyone documents a data center somehow. Here is where Obelinf sits.
| Option | IP conflicts | Utilization visibility | VRF & VLAN | IPv6 | Setup time |
|---|---|---|---|---|---|
| Spreadsheets | Frequent | Manual | No | No | Instant, then stale |
| NetBox | Rare | Yes | Yes | Yes | Hours to days |
ObelinfOur pick | Prevented by design | Live per subnet | Yes | Yes | Minutes |