nmap scan freezes D-Link DSL-504

From: Robert S (robert_s_at_emailme.net.au)
Date: 09/27/04 

Date: 27 Sep 2004 03:47:25 -0700

I have recently installed a DSL-504 Generation II gateway router
device in our office. I tested it with the Linux command "nmap
mydomain.com" from another computer on the 'net and the DSL-5-4 froze,
until I reset the device. I see on google.groups.com that others have
had a similar problems with other similar devices.

The log gives the following message on the device:

[FIREWALL]Up 5 mins 4
secs-Net_Bus_Scan:TCP,src:ip:203.221.196.199,dst:port:12345

As nmap is frequently used by hackers on the net, this renders the
device very unreliable because our office network is not continuously
attended.

I have installed the latest firmware update, but the problem still
occurs.

Is there a fix or a workaround?

Thanks in advance,

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