WatchGuard Technologies Firebox SOHO 6.1 ユーザーズマニュアル

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Chapter 6: Configure the Firewall Settings
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WatchGuard Firebox SOHO 6.1
Ping requests received on the External Network
You can configure the SOHO 6 to deny all ping packets that it 
receives on the external interface.
1
Select Do not respond to PING requests received on External 
Network
.
2
Click Submit.
Denying FTP access to the Trusted Network 
interface
You can configure the SOHO 6 to deny FTP access to the Trusted 
interface.
1
Select Do not allow FTP access to Trusted Network.
2
Click Submit.
SOCKS implementation for the SOHO 6
SOCKS  is a network proxy filter that works with SOCKS-aware 
applications. A typical SOCKS-dependent application requires that 
several sockets be opened and made available to the Internet. 
When a SOCKS-aware application (ICQ is an example) registers 
with the SOCKS server, SOCKS is able to manage the need of the 
application to have many ports open.
To use an application with SOCKS, configure the application with 
the SOCKS server information.
Setting up your SOCKS application for use with the SOHO 6 
requires no reconfiguration of the SOHO 6 appliance itself. Your 
SOHO 6 acts as the SOCKS proxy. You must, however, configure 
your application to be compliant with the SOHO 6 implementation 
of SOCKS version 5.
The SOHO 6 SOCKS feature has the following characteristics and 
limitations: