Security Basics mailing list archives

Cisco Pix UDP Built


From: Amodiovalerio Verde <amodiovalerio.verde () ags-it com>
Date: 18 Jun 2003 13:14:49 -0000



Hi all,

I'm writing a tool to manage and analyze the logs coming from Cisco Pix 
and module FWSM.

All the logs are sent to a syslog server to collect and analyze them in 
realtime.

I've a problem with a PIX message I couldn't understand the behaviour.

The message is the %PIX|FWSM-6-302005 and it is related to a Build 
connection...the format is

Built UDP connection for faddr 1.1.1.1/1 gaddr 2.2.2.2/2 laddr 3.3.3.3/3

The problem is that I cannot be sure of the direction of the connection, 
i.e. I don't know if it was the faddr opening a connection to laddr, or 
viceversa.

Cisco Pix seems just to ignore the direction of the connection ( that in 
the TCP Build is specified as inbound or outbound ).

Can anybody give me some clue about this behaviour ? it's a pix 'limit' ?

Thanks in advance

Amodiovalerio Verde

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