Strange UDP session

Unanswered Question
Mar 3rd, 2006
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Good morning I'm writing you because are several days that I find session like below, in the log of my Pix Firewall ver.6.3(3):

Feb 20 14:11:37 pix1a-inside pix1a %PIX-4-106023: Deny udp src dmz-zcom2: my_public_ip_address:/137 dst outside: by access-group "acl_dmz-zcom2"

Can you help me to understand what happen?

Seems like that a host make spoofing of its IP address.

Any information that you can send me are welcomed.

Best Regards


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