Asante FriendlyNET FR3000 Series, Руководство пользователя

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User’s Manual 37
Tip : Click the Help button to view common port definitions.
7.4 Popular Applications
This screen allows you to selectively configure
the router’s integrated firewall for use with
popular applications. The following features are
available to configure Popular Applications:
•
Trigger . The port initially issued by the ap-
plication (out)
•
Incoming Ports . When the trigger port is
detected, the inbound packets to the specified port numbers are allowed to
pass through the firewall. The port is open for 60 seconds
The Popular Application setting is designed to give only one computer access to
an incoming port. If this is insufficient, try the Access Control or DMZ functions.
Tip : For a list of special application ports, visit http://www.asante.com/support/
routerguide/index.html .
Group Members Access Right Comments
Group 1
100-199 Allow (25,53,80,110)
(Port 53 required for DNS) Can browse (80), receive (110) and
send (25) email only
Group 2
50-99 Block (21,119) Cannot read net news (119) and FTP
(21) only
Group 3
1-9,20 Block ( ) Full access (block nothing)
Default All others Allow ( ) No access rights (allow nothing)
Application Trigger Incoming Ports
QuickTime 4 Client, RealAudio (Port 554) 554 6970-32000
RealAudio (Port 7070) 7070 6970-7170
Windows 2000 Terminal Server 3389 3389
ICQ 4000 20,000-20,019