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Date:      Tue, 1 Jan 2002 12:22:08 -0500
From:      "Joe & Fhe Barbish" <barbish@a1poweruser.com>
To:        "FBSD Questions" <questions@FreeBSD.ORG>
Subject:   IPFW UDP port# 520
Message-ID:  <LPBBIGIAAKKEOEJOLEGOGEPBCKAA.barbish@a1poweruser.com>

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Happy new year to all FBSD list readers. 

I see in my security log a lot of denied packets over and 
over again of the same kind.

Deny UDP 208.203.25.3:520 63.163.61.14:520 in via tun0

208.203.25.3 is my ISP's IP address and 63.163.61.14 is my IP address.

When I lookup what port 520 is it says a local routing process
 or  Trojan Ripper.  I think it's my ISP's front door router 
inquiring if I am still there. 
Since my firewall is denying the request it just keeps repeating. 

How can I be sure It's my ISP's router and not the Ripper Trojan?

What rules do I need the add to my IPFW rules set to resolve this?

Thanks

Joe


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