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DMZ Firewall Solution for the Express Router
07-12-99 Version 1.0 10
Filter Function Settings
Dest. address: 10.5.0.2
Dest. port: > 1023
Src. address type: Host
Src. address: 10.2.0.4
Src. port: = 119
8 Sends all packets generated by the router
to the secure LAN (LAN1).
Action: Pass
Protocol: TCP
TCP flags: All
Dest. address type: All
Dest. port: All
Src. address type: Host
Src. address: <LAN1 IP address>
Src. port: All
Note 1: Some proxy servers, such as Microsoft Proxy* 2.0, do not support FTP proxy using the
FTP protocol. For upload and download using a special FTP program like WS_FTP*, an
additional FTP proxy on DMZ is required. This proxy server normally runs on port 21 and has to
support passive FTP. If download from an Internet browser is sufficient, the two filters are not
required.
Note 2: The filter is not required when using a News proxy server on DMZ.
3.3.2 LAN2 Filters
3.3.2.1 Receive (Rx) Filters on LAN2
Configure these receive filters for the LAN2 port, shown as they appear in Advanced Setup.
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