P flag

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- vertigo
  
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posted
17 years ago

Wed, Jun 28, 2006 3:30 PM

Hello

What is P (Push) flag in TCP used in real life ? Could cisco block such packets somehow ?

Thanx Michal

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posted
17 years ago

Fri, Jun 30, 2006 12:27 AM

To see how the filtering with ACLs based on TCP flags might be done, take a look at

formatting link

Cisco da Gama

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posted
17 years ago

Fri, Jun 30, 2006 8:43 AM

vertigo skrev:

Normally a TCP host is allowed to buffer data. The TCP push flag forces it to hand the data over to upper level applications right away insted of buffering it. (it is still allowed to delay acknowledgements though.)

This is from the RFC:

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