Tech Tools / Network & IP
Network & IP Planner
CIDR calculator, VLSM splits by host count, AV VLAN template (Dante primary/secondary, NDI, control, management), IP assignment CSV, and Dante multicast / QoS gotchas.
Use at your own risk. Address plans must match your switch, DHCP, and security policy. Dante multicast ranges and DSCP values below are from Audinate documentation — confirm against your Dante firmware and switch QoS maps. This tool is a planning aid only. Always verify against manufacturer documentation, local regulations, and on-site RF scans before a show.
CIDR result
- Network
- —
- Broadcast
- —
- Mask
- —
- Wildcard
- —
- Host range
- —
- Usable hosts
- —
VLSM / VLAN table
| Name | Hosts needed | CIDR | Network | Range |
|---|
Multicast & QoS reference (Dante)
Sources
- CIDR / VLSM — RFC 4632 / standard IPv4 subnet arithmetic.
- Audinate — Dante Information for Network Administrators; support articles on DSCP, IGMP, ports. Multicast audio/video default 239.255.0.0/16 UDP 4321; PTP 224.0.1.129–132; mDNS 224.0.0.251.
- Audinate QoS DSCP: CS7 (56) time-critical PTP; EF (46) audio / PTP v2; CS1 (8) reserved; BE (0) other.
- EEE / green Ethernet: widely documented Dante deployment guidance (disable on media ports).
What this network planner does
It computes CIDR fields, splits a parent prefix with VLSM by host need, and offers an AV VLAN template with Dante multicast/QoS gotchas.
VLSM tip
Allocate largest host counts first so subnets pack efficiently. Export the CSV into your switch docs.
Gotchas
- IGMP snooping + one querier per VLAN for heavy multicast.
- Disable EEE on Dante ports.
FAQ
How many usable hosts in a /24?
254 (256 − 2 for network and broadcast), except special /31 and /32 cases.
What multicast range does Dante use by default?
Audinate documents multicast audio/video on 239.255.0.0/16 (UDP 4321).
Which DSCP values does Dante hardware use?
CS7 (56) for time-critical PTP; EF (46) for audio / PTP v2 — configure strict-priority QoS.
Networking a show?
Kynetic designs Dante, NDI, and control networks for live events.