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Anthony's avatar
Anthony
Icon for Nimbostratus rankNimbostratus
Oct 31, 2012

Modified ASM Cookie after upgrade to 11.2.1-HF1

We run a high availability pair of F5 LTMs. This week I updated our standby unit to V11.2.1-HF1. I also applied the latest Attack Signatures. I made the ASM policies Transparent, and set the upgraded unit to active and offlined the other one. We then started to see a huge amount of 'Modified ASM Cookie's in the Traffic Learning.

 

Can someone suggest why this might be?

 

 

Many thanks,

 

Anthony

 

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1 Reply

  • Anthony's avatar
    Anthony
    Icon for Nimbostratus rankNimbostratus
    Oct 31, 2012
    Ok I realise this is probably in the wrong location now... but think I've found the issue I'm having anyway: https://support.f5.com/kb/en-us/products/big-ip_asm/releasenotes/product/relnote-asm-10-2-4.htmlupgrade