Chapter 3: Connections and setup
25
Illustrations
contained
in
this
document
are
for
representation
only.
Port
Filtering
This
page
allows
you
to
enter
ranges
of
destination
ports
(applications)
that
you
don’t
want
your
LAN
PCs
to
send
packets
to.
Any
packets
your
LAN
PCs
send
to
these
destination
ports
will
be
blocked.
For
example,
you
could
block
access
to
worldwide
web
browsing
(http
=
port
80)
but
still
allow
service
(SMTP
port
25
and
POP
‐
3
port
110).
To
enable
port
filtering,
set
Start
Port
and
End
Port
for
each
range,
and
click
Apply.
To
block
only
one
port,
set
both
Start
and
End
ports
with
the
same
value.
Fig.
15:
Port
Filtering
Settings
Summary of Contents for TCG220
Page 1: ...TCG220 USER MANUAL ...
