CCCC Network Documentation
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Overview

FYI - there are all sorts of Multicast IP assignments! See IANA for more information.



Protocols
Protocol Notes
IGMPv3/v2 to assist with multicast management. See this Shure page for more information.
DiffServ QoS
DHCP
mDNS (aka Bonjour) and DNS-­‐SD for discovery and enumeration of other Dante devices (including Dante Controller and Dante Virtual Soundcard).
Precision Time Protocol (PTP) ( IEEE1588-­‐2002 version ) for time synchronization uses multicast UDP transport.


Network Address Groups

General Dante Ports

   

External

   

Address

Port

Usage

Type

239.255.0.0/16

4321

ATP Multicast Audio

Multicast

239.69.0.0/16

5004

AES67 Multicast Audio (RTP / AVP port)

Multicast

224.0.1.129-132

319, 320

PTP

Multicast & Unicast when using DDM

224.0.0.251

5353

mDNS

Multicast

224.0.0.230 – 233

8700 – 8708

Multicast Control and Monitoring

Multicast

239.254.1.1

9998

Logging

Multicast

239.254.3.3

9998

PTP Logging (if enabled)

Multicast

239.254.44.44

9998

Logging

Multicast

239.255.255.255

9875

SAP (AES67 discovery)

Multicast

UDP

28800, 28700-28708

Via control & monitoring (External)

Unicast

UDP

38800, 38700-38708

DVS control & monitoring (External)

Unicast

    

Internal

   

Protocol

Port

Usage

Type

UDP

14336 -14591

Unicast Audio [Excluding Via]

Unicast

UDP

34336-34600

Unicast Audio [Via Only]

Unicast

UDP

4440, 4444, 4455

Audio Control [Excluding Via]

Unicast

UDP

24440, 24441,24444,24455

Audio Control [Via Only]

Unicast

UDP

4777

Via Control [Via Only]

Unicast

TCP

4777

Via Websocket

Unicast

UDP

8850,28900, 24445

Via control & Monitoring (Internal)

Unicast

UDP

8850,38900,8899

DVS control & monitoring (Internal)

Unicast

UDP

8000

Dante Domain Manager Device Port

Unicast

UDP

8001

Dante Millau Device Proxy (Internal only)

Unicast

UDP

8002

Dante Lock Server

Unicast

UDP

8751

Dante Controller metering port (From FPGA based devices)

Unicast

UDP

8800

Control & Monitoring (Excluding DVS-4.0 and Via)

Unicast

TCP

8753

mDNS clients (Internal only)

Unicast

TCP

16100-16131

HDCP Authentication for Video Endpoints

Unicast

UDP

61440‬-61951

FPGA level audio flow keepalive

Unicast

 

   

See this Audinate page for details



Network Address Groups
Address Group Use
224.0.0.251

An mDNS message is a multicast UDP packet sent using the following addressing:

  • IPv4 address 224.0.0.251 or IPv6 address ff02::fb
  • UDP port 5353
  • When using Ethernet frames, the standard IP multicast MAC address 01:00:5E:00:00:FB (for IPv4) or 33:33:00:00:00:FB (for IPv6)
224.0.0.233

Unassigned
239.255.255.250

SSDP is a text-based protocol based on HTTPU. It uses UDP as the underlying transport protocol. Services are announced by the hosting system with multicast addressing to a specifically designated IP multicast address at UDP port number 1900. In IPv4, the multicast address is 239.255.255.250[4] and SSDP over IPv6 uses the address set ff0X::c for all scope ranges indicated by X.[5]
239.255.250.250

This address is used for UPnP (Universal Plug and Play)/SSDP (Simple Service Discovery Protocol) by various vendors to advertise the capabilities of (or discover) devices on a VLAN. MAC OS, Microsoft Windows, IOS and other operating systems and applications use this protocol. Since each client device will most likely be using this protocol to advertise its capabilities to other devices, UPnP/SSDP traffic volume can quickly increase due to flooding of the traffic on a network proportional to the amount of new devices and services connecting to the network.
224.0.0.1

Local Network Control Block

  • (224.0.0.0 - 224.0.0.255 (224.0.0/24))
  • 224.0.0.1 All Systems on this Subnet [RFC1112] https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml