MTU
Specify
the Maximum Transmit Unit
size.
It is recommended
y
ou
accept the default setting of
A
u
t
o
.
O
t
he
r
w
i
s
e
,
p
ac
k
e
t
s
will be
fragmented downstream if the MTU is set too high or too
l
ow
,
which impacts network
pe
r
f
or
m
a
nc
e
.
In extreme
cases,
an MTU
setting that is too low can prevent the
OM5P-AC
from
establishing some
c
onne
c
t
i
ons
.
IP Address
E
nt
e
r
the WAN port
IP address.
IP
S
u
b
n
e
t
Mask
E
nt
e
r
the WAN
IP
subnet
m
a
s
k
.
G
a
t
e
w
a
y
IP Address
E
nt
e
r
the WAN gateway
IP
a
ddr
e
ss
.
PPTP
S
e
r
v
e
r
E
nt
e
r
the
IP address
of the
PPTP s
e
r
v
e
r
.
Username
E
nt
e
r
the
username
provided by your
I
S
P
.
Password
E
nt
e
r
the
password
provided by your
I
S
P
.
C
on
n
e
c
t
on Demand If you want the
OM5P-AC
to end the Internet connection after it
has been inactive for a period of
t
i
m
e
,
s
e
l
e
c
t
this option and enter
t
he
number of minutes you want that period of inactivity to
l
a
s
t
.
Keep
Alive
If you want the
OM5P-AC
to periodically check your
I
nt
e
r
ne
t
c
onne
c
t
i
on
,
s
e
l
e
c
t
this
op
t
i
on
.
Then specify how often you
w
a
nt
the
OM5P-AC
to check the Internet
c
onne
c
t
i
on
.
If the
connection is
down, the
OM5P-AC
automatically
r
e
-
e
s
t
a
bl
i
s
h
e
s
your
c
onne
c
t
i
o
n
G
e
t
A
u
t
om
a
t
i
c
a
ll
y
From
I
S
P
Obtains the
DNS
automatically from
DHCP
s
e
r
v
e
r
.
Use These
DNS Servers
Click
the radio button to set up the
Primary DNS
and Secondary
DNS servers
m
a
nu
a
ll
y
.
Discard
Ping on WAN
Check
to
En
a
b
l
e
to recognize pings on the
OM5P-AC
WAN
interface or
Disable
to block pings on the
OM5P-AC
WAN
int
e
r
f
ac
e
.
N
ot
e
:
P
i
nging
IP addresses
is a common method used
by
hackers
t
o
test whether the
IP address
is valid. Blocking pings provides some
extra security from
ha
c
k
e
r
s
.
A
cc
e
p
t
/
C
a
n
c
e
l
Click
A
cc
e
p
t
to confirm the
changes
or
C
a
n
c
e
l
to
cancel
and
return previous
s
e
tt
i
ngs
.
Clicking
A
cc
e
p
t
does not apply the
changes.
To apply
t
he
m
,
use
S
t
a
t
u
s
>
S
a
v
e
/
L
o
a
d
(see
section
4
.
1
)
.
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