Hi Oscar.

We have double-checked the routing tables... moreover, the connection
initially success but gets dropped after a while.
The routing config was the same when we had R60, and everything worked
fine; the problem appeared just when we upgraded the platform.

Thank you very much again.


El mar, 20-01-2009 a las 08:54 -0600, Oscar Esquivel escribió:
> Hello , I had a problem like that before....
> Full message is "TCP packet out of state: First packet isn't SYN;"
> 
> This happens sometimes because of routing issues....your firewall maybe
> is connected to another routing device or firewall, so the initiating
> connection of your Sql Connection(SYN PACKET) is not passing through the
> firewall, but the receiving connection (ACK PACKET) is passing through
> the firewall, that's why  it tells you that first packet should be SYN,
> instead ACK.......that means that the firewall is not seeing the first
> packet connection, because your are sending that packet through another
> routing device. What you can do is a traceroute from your sql clients ->
> sql server and viceversa. That could gives you a pretty good idea if
> something with the routing is not ok.
> 
> 
> I hope this helps..
> 
> 
> Rgds.
> 
> -----Mensaje original-----
> De: Mailing list for discussion of Firewall-1
> [mailto:[email protected]] En nombre de Esteban
> Serrano
> Enviado el: Martes, 20 de Enero de 2009 01:59 a.m.
> Para: [email protected]
> Asunto: [FW-1] Dropped out-of-state connections after upgrade from R60
> to R65
> 
> Hi everybody.
> 
> We have upgraded our firewall platform, running in a Crossbeam X40
> chassis, from R60 to R65 HFA30 last week.
> 
> Since then, we have noticed that some legitimate Oracle SQL connections
> are being dropped. The log says they are out-of-state packets, though
> they shouldn't.
> 
> We have checked wether aggressive aging was activated, but it seems it
> isn't:
> 
> fw_1 (crossbeam): root$ fw ctl pstat
> 
> Machine Capacity Summary:
>   Memory used: 2% (22MB out of 801MB) - below low watermark
>   Concurrent Connections: 0% (124 out of 24900) - below low watermark
>   Aggressive Aging is not active
> 
> Any ideas?
> 
> Thanks in advance!
> 
> Esteban Serrano
> 
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