| Broadcasts and Multicasts
|Domain Time II Server|
These are the broadcast and multicast addresses used by Domain Time Server.
CAUTION: The default settings on this page are correct for most situations. Only make changes if you are sure you need them and you fully understand the effects of the change.
Broadcasts and Multicasts are used for a variety of purposes by the various Domain Time components. For example:
- Server uses them to send cascades and advisories
- Server uses them as the listen addresses for IPv4 and IPv6 multicast requests
- Server uses them to send broadcast/multicast time (using the DT2, NTP and PTP protocols)
- Tools that don't have their own settings (for example, dtcheck.exe) use them for discovery and testing
- Clients can use them to discover DT2, NTP, and PTP time sources
- Clients use them as the listen addresses for IPv4 and IPv6 multicast requests
The settings on this page control whether Domain Time will enable multicasts and broadcasts and what addresses to use for these functions. Note, Domain Time joins multicast groups by default
even if these settings are disabled. Also, multicasts will always be used if you enable PTP. Multicast group join settings are set on the Network property page.
This section configures the Domain Time IPv4 Broadcast address.
By default, Domain Time Server will use broadcasts only on subnets local to this machine. If you want to reach machines on remote subnets, you should enable multicast (see below).
IMPORTANT: Disabling all broadcasts on this page may prevent your time hierarchy from operating correctly. If you are looking to disable a particular type of broadcast
(such as NTP broadcasts) you are better off disabling that specific broadcast type on its property page instead. See the Serve the Time and Domain Role property pages for details.
This section configures the Domain Time IPv4 Multicast address.
This section configures the Domain Time IPv6 Multicast address.
Proceed to the Security Settings page
Back to the Network Settings page