Comtech EF Data Vipersat SLM-5650A User Manual page 38

I n i t i a l C o n f i gu r a t i o n
4.
5.
6.
7.
Note: VMS version 3.7.1 or greater is required for Management Security.
NOTE
Caution: During the process of network-wide key distribution and enabling of
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units common to a network and allows the VMS to manage multiple
networks, each with its own unique network ID number.
Set the Receive Multicast Address.
This IP address is the multicast address assigned to all Vipersat modem
units in the network that are managed by the VMS server. The Receive
Multicast Address of this SLM-5650A must match the corresponding
Transmit Multicast Address that has been assigned to the VMS in order for
the modem units to receive the maintenance and control packets that are
multicast by the VMS.
Set the Managing IP Address.
The Managing IP Address is the IP address of the active VMS server. This
address is set automatically when receiving broadcast messages from the
Hub.
Hub Redundancy (Optional)
This field appears for Hub units only.
The Hub Redundancy option provides backup of primary modems (e.g.,
TDM/Burst Controller). When enabled, this setting sends a message
(HeartBeat) to the managing VMS on intervals of 2.5 seconds.
Management Security (Optional)
The Management Security option works in conjunction with the Hub
VMS, providing encryption on all messages passed between modem to
modem and active VMS. The keys are set manually on both the VMS and
the modem, and are entered either as a 64 character ASCII hex string or a
passphrase.
encryption, communications may be lost as the STDMA control
messages will be unreadable until all modems in the network are
configured.
It is recommended that each of the Remote units be configured for
Management Security first, and then the Hub units be configured.
This method will reduce the need for on-site personnel during feature
implementation.
V i p e r s a t S L M - 5 6 5 0 A U s e r G u i d e