Robustel
GoRugged
R3000
‐
3P
‐
GPS
User
Guide
RT_UG_R3000_v.2.0.3
10.12.2014
37
/
129
Advanced
@Cellular
WAN
Item
Description
Default
Phone
No.
Set
the
SIM
card’s
phone
number,
and
it
will
be
showed
in
“Status”
‐
>”System”
‐
>”System”
‐
>”Cellular
WAN
Information”
‐
“SIM
Phone
Number”.
In
general,
you
don’t
need
to
set
this
number
because
router
will
read
it
from
the
SIM
card
automatically.
Null
Authentication
Select
from
“Auto”,
“PAP”
and
“CHAP”
as
the
local
ISP
required.
Auto
MTU
Maximum
Transmission
Unit.
It
is
the
identifier
of
the
maximum
size
of
packet,
which
is
possible
to
transfer
in
a
given
environment.
1500
MRU
Maximum
Receiving
Unit.
It
is
the
identifier
of
the
maximum
size
of
packet,
which
is
possible
to
receive
in
a
given
environment.
1500
Asyncmap
Value
One
of
the
PPP
initialization
strings.
In
general,
you
don’t
need
to
modify
this
value.
1
Use
Peer
DNS
Enable
to
obtain
the
DNS
server’s
address
from
the
ISP.
Enable
Primary
DNS
Server
Set
the
primary
DNS
server’s
address.
This
item
will
be
unavailable
if
you
enable
“Use
Peer
DNS”.
Null
Secondary
DNS
Server
Set
the
secondary
DNS
server’s
address.
This
item
will
be
unavailable
if
you
enable
“Use
Peer
DNS”.
Null
Address/Control
Compression
Used
for
PPP
initialization.
In
general,
you
need
to
enable
it
as
default.
Enable
Protocol
Field
Compression
Used
for
PPP
initialization.
In
general,
you
need
to
enable
it
as
default.
Enable
Expert
Options
You
can
enter
some
other
PPP
initialization
strings
in
this
field.
Each
string
noccp