Hi Piotr,

  Thanks for your clarification.Seems Cisco IOS firewall consider UDP
half-open sessions as any UDP communication which is unidirectional.Is that
not right ..I was reading on the command reference on what cisco IOS
firewall treats it as UDP half open session.

Kindly correct me.

Thanks

Regards
Anantha Subramanian Natarajan

On Tue, Jan 25, 2011 at 11:48 AM, Piotr Matusiak <[email protected]> wrote:

> Anantha,
>
> UDP is connectionless so not half-open connections exist.
>
> Regards,
> Piotr
>
> 2011/1/25 Anantha Subramanian Natarajan <[email protected]>
>
>> Hi All,
>>
>>   I was going through the Cisco IOS Firewall Feature(CBAC) and understood
>> that,there is a global command "ip inspect tcp max-incomplete host value" to
>> delete half-open sessions,whenever the number of half-open sessions to the
>> specified destination host address rises above a threshold.Am trying to
>> understand a similar command exist for UDP,if not ,any specific technical
>> reason ,why this command wouldn't be possible for UDP.
>>
>> Thanks for the great help
>>
>> Regards
>> Anantha Subramanian Natarajan
>>
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>
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