TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
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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
MSN (7001)
UDP(17) 7001 7001 YES
YES N/A N/A N/A
N/A
MSN VEDIO
(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