Specifications

You will not expect many clients to want access to the FTP service at the
same time. To avoid an overloaded line, the maximum number of clients
who can be logged in at the same time is restricted to 20.
The options ‘Port reset PASV’ and ‘Same address’ must only be modified in
special cases and should remain activated. Finally, make the address of the
real FTP server known to the firewall:
FTP Server IP Address: 192.168.8.11
FTP Server Port: 21
Page 2/2 Proxy Configuration for FTP Server
Setting the IP filter rules should again be done automatically, so ‘Configure
IP filter rules automatically’ is activated. As there are no restrictions in the
access to the FTP server, the IP address should be specified as follows:
Access allowed for: 0.0.0.0/0.0.0.0
Caution
Public access
The address 0.0.0.0/0.0.0.0 overrides all access restrictions for the FTP
proxy. This means that any machines can send requests to the FTP
proxy and server.
Caution
FTP Proxy — Internal
In this dialog, specify which users of the intranet may access FTP servers in
the Internet via which connections. The dialog is shown in Figure 3.27 on the
facing page.
Auto listen to Decide if the ‘listen-to’ parameters should be generated auto-
matically (activated by default).
Reply to Selected IP Address If ‘Auto listen to’ is switched off, enter an
address here via which the FTP proxy is addressed.
FTP proxy port 10021
Port on which the FTP proxy is addressed.
Maximum Clients Maximum number of open connections on the FTP proxy.
66 Using the FAS