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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
58
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 being preconfigured.
Table 1: Predefined Port Filter
Port Number
Firewall - Low Firewall - Medium
Firewall – 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
NEWS(NNTP)
(Network
News
Transfer Protocol)
TCP(6) 119 119 NO YES NO YES NO NO
RealAudio/
RealVideo
(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
HTTP/HTTP
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