Hi,

Thank you for your advices.

I'll check them.

Regards,
Hiromasa


Lincoln Dale (ltd) wrote [2007/09/05 19:24(JST)]:
> configuring "ip tcp window-size" on the router has nothing to do with
> the IP packets being forwarded _through_ the router.
> 
> a client that cannot complete a TCP session is a classic symptom of an
> incorrect MTU somewhere and PMTUD failing to perform its task.
> 
> is your topology really that simple as 3 devices in total?
> what MTUs are configured?
> what does a ping with sweep of increasing sizes (with DF bit set) show?
> are you blocking ICMP traffic?
> 
> 
> cheers,
> 
> lincoln.
> 
>> -----Original Message-----
>> From: [EMAIL PROTECTED] [mailto:cisco-nsp-
>> [EMAIL PROTECTED] On Behalf Of Hiromasa Sekiguchi
>> Sent: Wednesday, 5 September 2007 6:22 PM
>> To: [email protected]
>> Subject: [c-nsp] About tcp window size
>>
>> Hello,
>>
>> About below condition.
>>
>> [client]------[cisco3745]-----[Web server]
>>
>> When TCP connection starts between client and web server,
>> they can't finish TCP connection.
>>
>> The TCP windows scaling is configured with web server.
>>
>> So, should we change the tcp window size on cisco3745?
>>
>> e.g. cisco3745(config)#ip tcp window-size 750000
>>
>> Regards,
>> Hiromasa
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