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Serial Tunnel Configuration Using Two PortServers Serial Tunnel Configuration Using Two PortServers Application Notes: PortServer to PortServer Connections
Two PortServers can be used to route data over IP between two serial
devices. Typical applications of this involve mainframe computers or
other servers that do not themselves have ethernet capability. This is
essentially a MUX application, and can be done between two PortServers
over ethernet, PPP, Frame Relay, or a combination of these.
Notes:
- serial parameters (speed, etc) can generally be set up differently on
each end of the connection.
- Hardware flow control is listed for reference. It is not required in
all cases.
All of these examples assume the use of the Standard
Digi Cable
Application 1:
Connecting Remote Terminals to a mainframe with two PortServers
On the mainframe side:
set port dev=mout ra=##
for hardware flow control:
set flow dtr=on ra=##
set the mainframe for rts/cts flow control
On the Terminal side:
set port dev=min ra=## auto=on
dest=[ip.of.mainframe.side]
dport=[2000+mainframeport##]
for hardware flow control:
set flow cts=on ra=##
set the terminal for dtr flow control
Application 2:
Connecting Remote Printers to a mainframe with two PortServers
On the mainframe side:
set port dev=min ra=## auto=on
dest=[ip.of.remote.side] dport=[2000+remoteport##]
for hardware flow control:
set flow dtr=on ra=##
On the Printer side:
set port dev=mout ra=##
for hardware flow control:
set flow cts=on ra=##
set the printer for dtr flow control.
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