Firewalls: Strange logs

Firewalls
(June 1997)

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Subject:	Strange logs
From:	Corneliu Tanasa <cornel @ logicnet . ro>
Organization:	LOGIC TELECOM SA
Date:	Wed, 04 Jun 1997 16:45:42 +0300
To:	firewalls @ greatcircle . com

Hi,

Today I found a line like this into my Cisco logs:

%SEC-6-IPACCESSLOGP: list 183 denied udp xxx.xxx.xxx.xxx(0) ->
yyy.yyy.yyy.yyy(162), 1 packet

Have anyone any idea about what this means?  I was very surprized about
the source port that is zero.  Should I be worried that someone tries an
attack ?

Thanks,
Corneliu Tanasa

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