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Example: Predened Port Filters Rules

The predened port lter rules for High, Medium and Low security levels are listed. See Table:

Predened Port Filter as below.

Note: Firewall – All Blocked/User-dened, you must dene and create the port lter rules

yourself. No predened rule is set.

Table: Predened Port Filter

Application Protocol

Port Number Firewall - High Firewall - Medium Firewall – Low

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.

Billion BiPAC 8520 User Manual

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