Serial
Port
Configuration
Page
|
39
TCP
Client
Keep
Alive:
When
in
client
mode
and
enabled,
TCP
Keep
Alive
packets
will
be
sent
from
the
client
to
the
server
periodically
in
order
to
detect
a
broken
connection.
The
modem
will
automatically
try
to
re
‐
establish
the
connection
if
necessary.
Changing
this
setting
will
affect
the
use
of
TCP
Keep
Alive
on
the
next
client
session.
It
will
not
affect
an
existing
session.
TCP
Client
Keep
Alive
Time:
Time
in
seconds
between
keep
alive
cycles.
A
keep
alive
cycle
will
consist
of
one
or
more
keep
alive
probes
separated
by
the
keep
alive
interval.
TCP
Client
Keep
Alive
Probes:
Number
of
keep
alive
packets
that
must
fail
before
connection
is
considered
closed.
TCP
Client
Keep
Alive
Intvl:
Time
in
seconds
after
which
a
keep
alive
packet
is
considered
to
be
failed
(if
not
acknowledged).
Another
packet
is
sent
at
this
time
if
TCP
Client
Keep
Alive
Probes
limit
has
not
been
reached.
PAD
Log:
When
enabled,
as
data
passes
through
the
PAD,
a
copy
is
stored
in
a
log
file
located
on
the
modem
at
/tmp/padlog.
The
log
will
stop
saving
data
when
full
and
data
is
lost
at
modem
reset.
The
SAVE
button
must
be
pressed
for
changes
to
take
effect.
8.2
INTERNAL
SERIAL
Select
Serial
from
the
left
navigation
page.
Select
the
Internal
Serial
tab
to
open
the
serial
port
and
PAD
settings
page.
The
Internal
Serial
screen
is
used
to
configure
the
internal
RS
‐
232
Serial
Port
parameters
and
Packet
Assembler
and
Dis
‐
assembler
(PAD)
functionality.
The
PAD
feature
allows
requests
that
come
in
on
a
specific
port
to
be
forwarded
to
the
internal
serial
port.
