Filter
Top Products
Billion 800VGT Router
Example:
Predefined Port Filters Rules
The
predefined
port
filter
rules
for
High,
Medium
and
Low
security
levels
are
listed.
See
Table
1.
Note:
Firewall
–
For
Blocked/User-defined
,
you
must
define
and
create
the
port
filter
rules
yourself.
No
predefined
rules
are
configured
for
these
modes.
Table 1: Predefined Port Filter
Port
Nu
m
ber
Fir
e
w
a
ll
-
Lo
w
Fir
e
w
a
ll
-
M
edium
Fir
e
w
a
ll
–
High
Application
Protocol
Start
End
Inbound
Outbound
Inbound
Outbound
Inbound
Outbound
HTTP(80)
TCP(6)
80
80
NO
YES
NO
YES
NO
YES
DNS
(53)
UDP(17)
53
53
NO
YES
NO
YES
NO
YES
DNS
(53)
TCP(6)
53
53
NO
YES
NO
YES
NO
YES
FTP(21)
TCP(6)
21
21
NO
YES
NO
YES
NO
NO
Telnet(23)
TCP(6)
23
23
NO
YES
NO
YES
NO
NO
SMTP(25)
TCP(6)
25
25
NO
YES
NO
YES
NO
YES
POP3(110)
TCP(6)
110
110
NO
YES
NO
YES
NO
YES
NE
W
S(
NNTP)
(
Ne
t
w
o
r
k
N
e
w
s
Transfer Protocol)
TCP(6)
119
119
NO
YES
NO
YES
NO
NO
Rea
l
Au
d
i
o/
Rea
lV
ideo
(7070)
UDP(17)
7070
7070
YES
YES
YES
YES
NO
NO
PING
ICMP(1)
N/A
N/A
NO
YES
NO
YES
NO
YES
H.323(1720)
TCP(6)
1720
1720
YES
YES
NO
YES
NO
NO
T.120(1503)
TCP(6)
1503
1503
YES
YES
NO
YES
NO
NO
SSH(22)
TCP(6)
22
22
NO
YES
NO
YES
NO
NO
NTP
/SNTP
UDP(17)
123
123
NO
YES
NO
YES
NO
YES
HTT
P/H
T
TP
Proxy
(8080)
TCP(6)
8080
8080
NO
YES
NO
NO
NO
NO
HTTPS(443)
TCP(6)
443
443
NO
YES
NO
YES
N/A
N/A
ICQ
(5190)
TCP(6)
5190
5190
YES
YES
N/A
N/A
N/A
N/A
MSN
(1863)
TCP(6)
1863
1863
YES
YES
N/A
N/A
N/A
N/A
MSN
(7001)
UDP(17)
7001
7001
YES
YES
N/A
N/A
N/A
N/A
MSN
V
I
D
E
O
(9000)
TCP(6)
9000
9000
NO
YES
N/A
N/A
N/A
N/A
Inbound:
Internet
to
LAN
;
Outbound:
LAN
to
Internet.
YES:
Allowed
;
NO:
Blocked
;
N/A:
Not
Applicable
59
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C
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nfi
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