Chapter
3:
Web
Management
Security
‐
Network
‐
Port
Security
‐
Port
Intelinet
48
‐
Port
Gigabit
Ethernet
PoE+
Managed
Switch
User
Manual
|
246
3.2.5.2.2.
Security
‐
Network
‐
Port
Security
‐
Port
This
page
shows
the
MAC
addresses
secured
by
the
Port
Security
module.
Port
Security
is
a
module
with
no
direct
configuration.
Configuration
comes
indirectly
from
other
modules
‐
the
user
modules.
When
a
user
module
has
enabled
port
security
on
a
port,
the
port
is
set
‐
up
for
software
‐
based
learning.
In
this
mode,
frames
from
unknown
MAC
addresses
are
passed
on
to
the
port
security
module,
which
in
turn
asks
all
user
modules
whether
to
allow
this
new
MAC
address
to
forward
or
block
it.
For
a
MAC
address
to
be
set
in
the
forwarding
state,
all
enabled
user
modules
must
unanimously
agree
on
allowing
the
MAC
address
to
forward.
If
only
one
chooses
to
block
it,
it
will
be
blocked
until
that
user
module
decides
otherwise.
MAC
Address
&
VLAN
ID
The
MAC
address
and
VLAN
ID
that
is
seen
on
this
port.
If
no
MAC
addresses
are
learned,
a
single
row
stating
"No
MAC
addresses
attached"
is
displayed.
State
Indicates
whether
the
corresponding
MAC
address
is
blocked
or
forwarding.
In
the
blocked
state,
it
will
not
be
allowed
to
transmit
or
receive
traffic.
Time
of
Addition
Shows
the
date
and
time
when
this
MAC
address
was
first
seen
on
the
port.
Age/Hold
If
at
least
one
user
module
has
decided
to
block
this
MAC
address,
it
will
stay
in
the
blocked
state
until
the
hold
time
(measured
in
seconds)
expires.
If
all
user
modules
have
decided
to
allow
this
MAC
address
to
forward,
and
aging
is
enabled,
the
Port
Security
module
will
periodically
check
that
this
MAC
address
still
forwards
traffic.
If
the
age
period
(measured
in
seconds)
expires
and
no
frames
have
been
seen,
the
MAC
address
will
be
removed
from
the
MAC
table.
Otherwise
a
new
age
period
will
begin.
If
aging
is
disabled
or
a
user
module
has
decided
to
hold
the
MAC
address
indefinitely,
a
dash
(
‐
)
will
be
shown.
Buttons
Auto
‐
refresh:
Check
this
box
to
refresh
the
page
automatically.
Automatic
refresh
occurs
every
3
seconds.
Refresh:
Click
to
refresh
the
page
immediately.