Guralp Systems CMG-DCM build <10,000 - Manual (Page 217)

Acquisition Modules and Platinum Firmware Building Networks
An active GSTM link can forward arbitrary TCP connections to the clients
from any host that can access the server. For each desired port forward, enter
the following information:
Listen address: By default, the port-forward will listen for incoming
connections on all available interfaces. If this field is populated with an IP
address, the port-forward will only listen for connections addressed to that
address. This option is only useful on systems with multiple IP addresses.
Listen service/port: The port-forward will listen for incoming connections
addressed to this port and forward those connections across the network to
the client and port specified in the subsequent fields. The port can be
specified as either a name or a number. The mapping from port names to port
numbers is configured by the conventional Linux file /etc/services which
can be edited from the command line if required.
Target client: Connections accepted by the port-forward will be forwarded to
the client identified by the contents of this field. The field should be
populated with the Username that was configured on the “Server” tab of the
GSTM client (as described in section 13.2.1.1 on page 212).
Note: The client is specified by Username rather than I.P. address,
as might be expected. This is to support clients that might be
connecting from dynamic I.P. addresses.
Target service/port: Connections accepted by the port-forward will be
forwarded to this port on the remote client. The port can be specified as
either a name or a number. The mapping from port names to port numbers is
configured by the conventional Linux file /etc/services which can be
edited from the command line if required.
Clicking the button on any row will open a new row. In the same way,
rows can be deleted by clicking the corresponding button.
MAN-EAM-0003 217 Issue E - February 2014