Refer
e
nc
e
Man
ual
for
the
Pr
oSafe
8
02.11
g
Wire
less
VPN F
irewa
ll FVG31
8
F
irewa
ll
Pr
otection an
d Conten
t Filter
ing
5
-7
BETA
Ou
tb
ou
nd
Ru
les (Service Blo
cking
)
The
FVG3
18
allo
ws
yo
u
to
b
loc
k
th
e
use
o
f ce
rta
in
Intern
et s
ervic
es
by
PCs
on
y
ou
r n
etwo
rk
. Th
is
is called service blocking or port filtering.
Y
ou ca
n define an outbound rule to
block Internet
acc
ess from a local PC bas
ed on:
•
IP
ad
dress
of the local PC (source
a
ddress)
•
IP
ad
dress
of the Interne
t s
ite
being contacted (des
tination addre
ss)
•T
im
e o
f d
ay
•
Type of
se
rvic
e be
ing
re
queste
d (service port number)
Following i
s
an application
ex
ample o
f an o
utb
ou
nd
rule:
Outbound
Rul
e Exampl
e: Blocking
Inst
an
t Mess
enger
If you want to block Insta
nt Messe
nger us
age
by
e
m
ployees
during w
orking hours,
you
ca
n
cr
ea
te
an
out
bou
nd
rul
e t
o b
lock
that app
licatio
n
from a
ny
internal IP addre
ss to a
ny
ex
te
rnal addre
ss
acco
rdin
g t
o th
e
sch
ed
ule th
at
yo
u h
av
e created in
th
e
Sch
edul
e menu
. Y
ou can also
have th
e
firewall log any attempt to
use Instan
t Me
ssenge
r during that
blocked period.
Figu
re 5-
5:
Rule exa
mple:
b
loc
king Inst
an
t
M
ess
enge
r
