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Problem with IP reporting - Belkin Cable/DSL router

daemon@ATHENA.MIT.EDU (M Freitas)
Mon Jun 10 18:24:09 2002

Date: 9 Jun 2002 22:17:04 -0000
Message-ID: <20020609221704.10698.qmail@mail.securityfocus.com>
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From: M Freitas <freitasm@mailcity.com>
To: bugtraq@securityfocus.com



Product: Belkin F5D5230-4 4-Port Cable/DSL Gateway Router

Firmware version: V1.20.000

Hardware version: R01

Problem : Reporting incorrect IP address when allowing port 80 into 
internal network.

Description:

The Belkin 4-port Cable/DSL Gateway Router will forward a http request to 
the correctly configured http server in the internal network.

The reported IP address is correct, until a request from the internal 
network is tried.

From this moment the requesting IP address is always reported as the 
router's external IP address.

This continues until the router is reset.

The incorrect IP address is logged in both the server's log and personal 
firewall log.

Notified Belkin 09/May/2002, no workaround or fix received yet.


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