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Billion BiPAC 8500/8501/8520/8521 SHDSL (VPN) Firewall Bridge/ Router
Chapter 4: Configuration
84
Example: Predefined Port Filters Rules
The predefined port filter rules for High, Medium and Low security levels are listed. See Table 1.
Note: Firewall – All Blocked/User-defined, you must define and create the port filter rules
yourself. No predefined rule is set
Table 1: Predefined Port Filter
Port Number
Firewall - High Firewall - Medium
Firewall – Low
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 YES YES
DNS (53) TCP(6)
53 53 NO
YES
NO
YES YES YES
FTP(21) TCP(6)
21 21 NO NO NO
YES
NO
YES
Telnet(23) TCP(6)
23 23 NO NO NO
YES
NO
YES
SMTP(25)
TCP(6)
25 25 NO
YES
NO
YES
NO
YES
POP3(110)
TCP(6)
110 110
NO
YES
NO
YES
NO
YES
NEWS(119)
TCP(6)
119 119
NO NO NO
YES
NO
YES
RealAudio
(7070)
UDP(17)
7070 7070
NO NO
YES YES
YES YES
PING ICMP(1)
N/A N/A
NO
YES
NO
YES
NO
YES
H.323(1720)
TCP(6)
1720 1720
NO NO NO
YES YES YES
T.120(1503)
TCP(6)
1503 1503
NO NO NO
YES YES YES
SSH(22) TCP(6)
22 22 NO NO NO
YES YES YES
NTP(123) UDP(17)
123 123
NO
YES
NO
YES
NO
YES
HTTPS(443)
TCP(6)
443 443
NO NO NO
YES
NO
YES
ICQ (5190)
TCP(6)
5190 5190
NO NO NO
NO
YES
YES
Inbound: Internet to LAN ; Outbound: LAN to Internet.
YES: Allowed ; NO: Blocked ; N/A: Not Applicable