To enable the hostlist:
Enter a Connect Mode of 0x20 (2X), where X is any digit. The menu shows you a list of current
entries already defined in the product.
To delete, modify, or add an entry, select Yes. If you enter an IP address of 0.0.0.0, that entry
and all others after it are deleted.
After completing the hostlist, repeat the previous step if necessary to edit the hostlist again.
For
Retrycounter
, enter the number of times the Grid Connect unit should try to make a good
network connection to a hostlist entry that it has successfully ARPed. The range is
1-15
, with
the default set to
3
.
For
Retrytimeout
, enter the number of seconds the unit should wait before failing an attempted
connection. The time is stored as units of milliseconds in the range of
10-65535
. The default
setting is
250
.
d) Datagram Type
Directed UDP
When selecting this option, the prompt requests the Datagram type. Enter
01
for
directed or broadcast UDP. Datagrams of type 01 can be sent as a broadcast by
enabling this option. The default is not to broadcast.
Datagrams are sent as subnet-directed broadcasts.
When the UDP option is in effect, the unit never attempts to initiate a TCP
connection because it uses UDP datagrams to send and receive data.
e) Modem Mode
In Modem (Emulation) Mode, the unit presents a modem interface to the attached serial device. It
accepts AT-style modem commands and handles the modem signals correctly.
Normally, there is a modem connected to a local PC and a modem connected to a remote
machine. A user must dial from the local PC to the remote machine, accumulating phone charges
for each connection. Modem Mode allows you to replace modems with NetDirects, and to use an
Ethernet connection instead of a phone call. By not having to change communications
applications, you avoid potentially expensive phone calls.
To select Modem Mode, set the Connect Mode to
C6
(no echo),
D6
(echo with full verbose),
D7
(echo with numeric response),
CF
(modem responses only, numeric response), or
CE
(modem
responses only, full verbose).
If the unit is in Modem Mode, and the serial port is idle, the unit can still accept network
TCP connections to the serial port if Connect Mode is set to
C6
(no echo),
D6
(echo with
full verbose),
D7
(echo with numeric response,
CF
(modem responses only, numeric
response), or
CE
(modem responses only, full verbose).
Without Echo
In Modem Mode, echo refers to the echo of all of the characters
entered in command mode; it does
not mean
to echo data that is
transferred. Quiet Mode (without echo) refers to the modem
not
sending an answer to the commands received (or displaying what
was typed).
Summary of Contents for NetDirect
Page 1: ...NetDirect User Guide ...
