Serial Line Replacement
C-4
TCP Pipe
TCP Pipe, like RMP Pipe, makes no changes to the serial data stream. TCP Pipe differs
from RMP Pipe in that it creates two independent network connections for transmitted and
received data. Using two connections allows each Ethernet Adapter to detect conditions
when it has lost radio contact with the opposite unit, as can occur in environments with poor
radio communication.
In this configuration, each Ethernet Adapter unit simultaneously acts as a client and a
server.
To configure for the TCP Pipe protocol, perform the following steps:
1)
Complete the Basic Radio settings as described in
PC Card Configuration
on page 4-12
.
2)
Complete the Network Configuration described in
Chapter 4
.
3)
Complete the General Serial Configuration described in
Chapter 5
.
4)
Click on the Serial tab and then select the Protocol tab.
5)
Select TCP Pipe.
6)
Click on the Passthrough2 tab
.
7)
Enter the Listen on port number for each unit. Ensure that this number
matches the Connect to port number of the opposite unit. The defaults for
both of these ports are set to 4000 ensuring a correct configuration if these are
both left at the default value.
8)
Enter the IP address of the opposite unit in the “Connect to IP” field.
9)
There are Re-connect after shutdown check boxes for both the Listening Port
and Connecting Port numbers. These are checked by default. This feature
allows the Ethernet Adapter units to re-establish communication after one of
the Ethernet Adapter units has lost communication with the other. For
example, if one of the Ethernet Adapter units is power cycled or loses radio
communication for a time, the unit reconnects only if this feature is enabled.
10)
Click on the Update and Reset Unit button.
If you are replacing a serial line or serial network with two or more Ethernet
Adapter units without using an Access Point, be sure your radio is using
Ad-hoc mode.
NOTE
