6: Line and Tunnel Settings

Connect Mode

In Connect Mode, theEDS-MD4/8/16 continues to attempt an outgoing connection on the network, until established. If the connection attempt fails or the connection drops, then it retries after a timeout. The remote node on the network must listen for the Connect Mode’s connection.

For Connect Mode to function, it must be enabled, have a remote station (node) configured, and a remote port configured (TCP or UDP). When established, Connect Mode is always on. Enter the remote station as an IP address or DNS name. TheEDS-MD4/8/16 will not make a connection unless it can resolve the address.

For Connect Mode using UDP, theEDS-MD4/8/16 accepts packets from any device on the network. It will send packets to the last device that sent it packets.

Note: The Port in Connect Mode is not the same port configured in Accept Mode.

The TCP keepalive time is the time in which probes are periodically sent to the other end of the connection. This ensures the other side is still connected.

 

Table 6-6 Tunnel Connect Mode Settings

 

 

 

Tunnel Connect Mode

 

Description

Settings

 

 

Mode

 

Set the method to be used to attempt a connection to a remote host or

 

 

device. Choices are:

 

 

Disable = an outgoing connection is never attempted. (default)

 

 

Always = a connection is attempted until one is made. If the connection

 

 

gets disconnected, the EDS-MD retries until it makes a connection.

 

 

Any Character = a connection is attempted when any character is read

 

 

on the serial line.

 

 

Start Character = a connection is attempted when the start character for

 

 

the selected tunnel is read on the serial line.

 

 

Modem Control Asserted = a connection is attempted as long as the

 

 

Modem Control pin (DSR) is asserted, until a connection is made.

 

 

Modem Emulation = a connection is attempted when triggered by

 

 

modem emulation AT commands.

 

 

 

Local Port

 

Enter an alternative Local Port. The Local Port is set to <Random> by

 

 

default but can be overridden. Blank the field to restore the default.

 

 

 

Host 1

 

Click on the displayed information to expand it for editing. If <None> is

 

 

displayed, clicking it will allow you to configure a new host. At least one Host

 

 

is required to enable Connect Mode as this information is necessary to

 

 

connect to that host.

 

 

 

Reconnect Timer

 

Set the value of the reconnect timeout (in milliseconds) for outgoing

 

 

connections established by the device. Valid range is 1 to 65535

 

 

milliseconds. Default is 15000.

 

 

 

Flush Serial Data

 

Set whether the serial Line data buffer is flushed upon a new network

 

 

connection. Choices are:

 

 

Enabled = serial data buffer is flushed on network connection

 

 

Disabled = serial data buffer is not flushed on network connection

 

 

(default)

 

 

 

EDS-MD User Guide

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Lantronix EDS-MD4, EDS-MD8 Tunnel Connect Mode Settings, Tunnel Connect Mode Description Settings, Reconnect Timer