IPFW on OS X issues

[Rishi Pande <rpande () vt edu>]

Hello, 
       I am having problems with an OS X machine on which I set up 
an IPFW firewall. The firewall does not allow SLP network browsing 
on port 427. I log all the denied entries and the log shows about 
10 messages a second of more or less the same message. Here's 
a sampling of the log:

Jul 28 15:44:13 nom mach_kernel: ipfw: 7000 Deny UDP 
128.173.125.180:49807 239.255.255.253:427 in via en0
Jul 28 15:44:13 nom mach_kernel: ipfw: 7000 Deny UDP 
128.173.201.44:49406 239.255.255.253:427 in via en0
  
The funny part is my machine is not 239.255.255.253. I have 
installed the same firewall on different machines but they don't 
seem to have any such problems.

Needless to say all the machines time is spent writing to the log 
and it doesn't do anything useful for the user.I am a newbie to 
this stuff, so I am really sorry if this a dumb question.

Any help/comments are appreciated. Thanks in anticipation.
                                                                 Rishi  

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