beautypg.com

Add an application filter – Asus RX3041H User Manual

Page 84

background image

Chapter 9. Configuring Firewall/NAT Settings

RX3041H User’s Manual

70

Field

Description

PASV Allow

initiation

of

a passive data connection.

PORT

Allow or deny Port Number to participate in an active data connection.

RETR

Allow or deny getting a file from the FTP server.

RMD

Allow Removing a directory.

RNFR Allow

Rename

from.

RNTO Allow

Rename

to.

DELE

Allow Deletion of a file.

SITE

Allow Site parameters (Specific services provided by the FTP server).

STOR

Allow or deny of putting a file to the FTP server.

SMTP Commands

Add the following command to an SMTP filter to:

MAIL

Allow or deny initiating a mail transaction.

RCPT

Allow or deny identifying an individual recipient of the mail data.

DATA

Allow or deny mail data.

VRFY

Allow or deny verifying the existence of the user.

EXPN

Allow or deny identification for a mailing list.

TURN

Allow or deny the switching roles of the client and server, to send mail in the
reverse direction.

SEND

Allow or deny initiating a mail transaction.

HTTP (Deny
Following Files)

Add the following command to an HTTP filter to:

Java Applet

Deny all *.class files.

Java-archive

Deny all *.jar files.

MS Archive

Deny all *.msar files.

ActiveX

Deny all *.ocx files.

RPC Numbers

RPC numbers

Add this command to an RPC filter to allow or deny RPC program numbers.

9.8.1.2

Add an Application Filter

The application filter configuration is best explained with a few examples. Note that the configuration for RPC
and SMTP is similar to that for FTP and will not be presented here.