User Manual

13745-419-C0-002, Rev. B
2.0 Transponder Installation, continued
2.1 Provisioning the Transponder, continued
2.1.3 Transponder Confi guration Using Cable Modem Confi g File
To eliminate the hmsinit.ini confi guration fi le, a select set of MIB variables
must be added to the cable modem confi g fi le. These MIB variables contain the
initialization parameters that replace the hmsinit.ini fi le. If the parameters are not
set in the cable modelm confi g fi le, the code will fall back to its previous operation
and attempt to load an hmsinit.ini fi le from the TFTP server.
Single IP Operation
1. The settings are obtained by the transponder through the normal boot process
via the cable modem confi g fi le. The transponder code uses the new MIB
variables to construct a fi le image in RAM. The fi le image will be transferred from
the transponder to the Dallas chip in the same manner as the hmsinit.ini.
2. If there are no hmsinit settings in the cable modem confi g fi le, the code will
attempt to retrieve the hmsinit.ini fi le from the TFTP server. This allows
current customers to continue with their existing setup utilizing hmsinit.ini.
Dual IP Operation
1. For customers specifying a different TFTP server for the HMS confi g, the code
operates as it currently does. The Dallas chip gets a TFTP fi le name from its
DHCP offer. It downloads hmsinit.ini directly as it does now. In this case
settings are not required in the cable modem confi g fi le.
2. Dual IP customers can use the cable modem confi g fi le to obtain the settings. In
this case, there is no need to supply a fi lename in the DHCP offer. The Dallas
side of the chip looks to see if there is a fi lename, if there is not, it attempts to
retrieve hmsinit.ini. When it recognizes there is no .ini fi le, it queries the
chip for the data.
The HMS confi g data, whether confi gured using the cable modem confi g fi le or hmsinit.ini, is set when
the unit boots. The transponder must be reset for confi guration changes to update. A separate HMS reset is
not required.
The following parameters will be supported in the MIB that replaces hmsinit.ini.
Note that this is the maximum set of parameters, some are optional.
[SERVER IP]
[TIME SERVER IP]
[TRAP SERVER IP]
[DISCOVERY COMMUNITY]
[READ COMMUNITY]
[READ/WRITE COMMUNITY]
[SECURE SNMP]
[SECURE HOSTS]
NOTE: