Media5 Mediatrix 4104, Reference Manual

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Chapter 8 - IP Address and Network Configuration Services
150 Mediatrix 4104
SNTP
The ipAddressConfigSntp group provides the configuration necessary for contacting a NTP/SNTP server.
If you are using a NTP or SNTP server (see “Chapter 20 - SNTP Settings” on page 287 for more details), the
DHCP server already has options that can be set to provide time server addresses, and the order in which
clients use them to attempt to discover servers.
The Mediatrix 4104 uses Option 42 to specify the IP address corresponding to the server that provides NTP/
SNTP (RFC 1769).

To select the SNTP configuration source:
1. In the ipAddressConfig folder, locate the sntpSelectConfigSource variable (under the
ipAddressConfigSntp group).
2. Set this variable to either static or dhcp .
sipPresenceComposi
torHost “0.0.0.0” Use option specified in variable
sipPresenceCompositorDhcpSiteSpecificCode ,
bytes 0-3.
If not specified (0), use option 43, sub-option
206, bytes 0-3.
sipPresenceComposi
torPort 0 Use option specified in variable
sipPresenceCompositorDhcpSiteSpecificCode ,
bytes 4-5.
If not specified (0), use option 43, sub-option
206, bytes 4-5. If bytes 4-5 are not present, use
the default static value.
Table 87: SIP Servers Source (Continued)
Variable Default Static Value DHCP Source
In the Unit Manager Network Administration Manual , refer to chapter Administration Parameters , section
SNTP .
Table 88: SNTP Source
Variable Default Static Value DHCP Source
sntpHost “192.168.0.10” Option 42 (first of the list).
sntpPort 123 Not provided by the DHCP, use the default static
value.