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variable TCP_WND_SIZE_OPTION on CSM

Hi guys.

 

I want to obtain the ACE command equivalent to CSM  variable TCP_WND_SIZE_OPTION command.

Also, I wuold like to know any recommendations about TCP windows size and scale on the ACE.

 

Thanks in advance!

1 REPLY 1
Cisco Employee

Hi David,So by default in ACE

Hi David,

So by default in ACE, TCP options are stripped before  they are forwarded to server. To allow them you need to specify connection pmap.

tcp-options {range number1 number2 {allow | drop}} | {selective-ack | timestamp | window-scale} {allow | clear | drop}

So for allowing window scaling you need to do:

tcp-options window-scale allow

And for setting the scaling factor you need to use:

set tcp window-scale number

Pasting the document link for your reference:

http://www.cisco.com/c/en/us/td/docs/interfaces_modules/services_modules/ace/vA5_1_0/configuration/security/guide/securgd/tcpipnrm.html#wp1010795

Let me know if you have any questions.

Regards,

Kanwal

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