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2.1.6
Routing Mode
When your CGNVM is in routing mode, it acts as a gateway for computers on the
LAN to access the Internet. The service provider assigns an IP address to the
CGNVM on the WAN, and all traffic for LAN computers is sent to that IP address. The
CGNVM assigns private IP addresses to LAN computers (when DHCP is active), and
transmits the relevant traffic to each private IP address.
NOTE:
When DHCP is not active on the CGNVM in routing mode, each computer on
the LAN must be assigned an IP address in the CGNVM's subnet manually.
When the CGNVM is not in routing mode, the service provider assigns an IP address
to each computer connected to the CGNVM directly. The CGNVM does not perform
any routing operations, and traffic flows between the computers and the service
provider.
Routing mode is not user-configurable; it is specified by the service provider in the
CGNVM's configuration file.
2.1.7
Configuration Files
The CGNVM's configuration (or config) file is a document that the CGNVM obtains
automatically over the Internet from the service provider's server, which specifies the
settings that the CGNVM should use. It contains a variety of settings that are not
present in the user-configurable Graphical User Interface (GUI) and can be specified
only by the service provider.
2.1.8
Downstream and Upstream Transmissions
The terms "downstream" and "upstream" refer to data traffic flows, and indicate the
direction in which the traffic is traveling. "Downstream" refers to traffic from the
service provider to the CGNVM, and "upstream" refers to traffic from the CGNVM to
the service provider.
2.1.9
Cable Frequencies
Just like radio transmissions, data transmissions over the cable network must exist
on different frequencies in order to avoid interference between signals.
The data traffic band is separate from the TV band, and each data channel is
separate from other data channels.
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Version 1.0, 02/2015. Copyright
Version 1.0, 02/2015. Copyright
Hitron CGNVM User's Guide
2012 Hitron Technologies
2014 Hitron Technologies
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