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Enable
Output
Rules
Enable
rules
limiting
access
to
the
Internet.
Input/Output
Specify
if
the
current
rule
is
input
or
output.
Deny/Permit
Specify
if
the
current
rule
is
Deny
or
Permit.
Protocol
Filter
protocol
type
(TCP/
UDP/
ICMP/
IP)
Port
Range
Set
the
filter
Port
range
Src
Address
Set
source
address.
It
can
be
a
single
IP
address
or
use
*
as
a
wild
card.
For
example:
192.168.1.14
or
*.*.*.14.
Dest
Address
Set
destination
address.
It
can
be
a
single
IP
address
or
use
*
as
a
wild
card.
For
example:
192.168.1.14
or
*.*.*.14.
Src
Mask
Set
the
source
address
mask.
For
example:
255.255.255.255
points
to
one
host
while
255.255.255.0
points
to
a
C
type
network.
Dest
Mask
Set
the
destination
address
mask.
For
example:
255.255.255.255
points
to
one
host
while
255.255.255.0
points
to
a
C
type
network.
When
a
connected
device
tries
to
access
192.168.1.118,
the
phone
will
deny
the
request
because
of
the
out_access
rule.
Access
to
any
other
IP
address
will
be
allowed.
Click
the
Delete
button
to
delete
the
selected
rule.
8.3.7.3
Network
Address
Translation
(NAT)
NAT
is
the
process
of
modifying
IP
address
and
port
information
in
transition
from
a
private
to
a
public
network.
NAT
allows
the
use
of
one
public
address
to
support
many
private
addresses.
Summary of Contents for IP 340P
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