Re: Strange behaviour with a TCP connection

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Lawrence MacIntyre <lpz@ornl.gov> writes:

> Is the firewall a LinkSys box?  I've seen several strange behaviours
> that I didn't have time to track down where one machine would work and
> another would not.  The latest firmware upgrade from Linksys fixed it.

Unfortunately, the firewall is still a Debian GNU/Linux 2.4.22 machine.
This makes the problem much more interesting :)


> On Wed, 2003-10-01 at 09:25, Andrés Roldán wrote:
>> Hi.
>> 
>> I have the following problem:
>> 
>> I have two machines being natted through a firewall. Both machines
>> are translated to the same public IP. The two machines have not
>> any filtering/natting/mangling rules. One machine has kernel 2.4.22
>> and the other has 2.4.21. When the 2.4.21 machine tries to make a 
>> connection to a certain IP address to the port 443 (https), a 
>> RESET is sent inmediatly from the target (yes, the connection is natted). 
>> When the other machine (kernel 2.4.22) tries to make the same connection 
>> to the same target, the connection is succesfully done. If the
>> machine with kernel 2.4.21 boots off 2.4.22, the problem is solved.
>> 
>> By the way, the firewall has not any filtering rules for those machines.
>> 
>> Does anyone know what could be the problem?
>> 
>> Thanks in advance.
> -- 
>     Lawrence MacIntyre     865.574.8696     lpz@ornl.gov
>                Oak Ridge National Laboratory
> High Performance Information Infrastructure Technology Group
>

-- 
Andres Roldan <aroldan@fluidsignal.com>
GPG Key-ID: 0xB29396EB

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