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DMZ Firewall Solution for the Express Router
07-12-99 Version 1.0 21
Filter Function Settings
Dest. port: > 1023
Src. address type: Host
Src. address: 193.84.251.4
Src. port: 119
8 Sends all packets generated by the
router to the internal 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 uploading and downloading using a special FTP program, such as WS_FTP*,
an additional FTP proxy on DMZ is required. This proxy server normally runs on port 21, and it
has to support passive FTP. If downloading 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.
4.4.2 LAN2 Filters
4.4.2.1 Receive (Rx) Filters on LAN2
Configure these receive filters for the LAN2 port, shown as they appear in Advanced Setup.
×
Filters are defined as follows:
Filter Function Settings
— Pass all packets destined for DMZ Default Action: Pass
1 Prevents RIP updates from entering the
DMZ network
Action: Discard
Protocol: UDP
Dest. address type: All
Dest port: RIP