Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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Nathaneil0227_2's avatar
Nathaneil0227_2
Icon for Nimbostratus rankNimbostratus
Apr 26, 2016

Upgrading LC 2000s to higher f5 box

Hi All/DC Experts,

 

Anyone who can give me challenges or anything they experience when you upgrade physical f5 box.

 

Thank you.

 

Regards,

 

-Nat

 

4 Replies

  • Hello,

     

    No specific issues for me except that the SSL license is not enforced in old versions so you are able to decrypt ssl sessions and manipulate http content. But not possible anymore with latest versions of F5 LC so not possible to insert X-Forwarded-For headers for example.

     

    Also, if you configure Failsafe actions and have a HA pair, you should test it again after the upgrade to make sure that in case of failover or connectivity loss, everything goes fine

     

  • Hello,

     

    No specific issues for me except that the SSL license is not enforced in old versions so you are able to decrypt ssl sessions and manipulate http content. But not possible anymore with latest versions of F5 LC so not possible to insert X-Forwarded-For headers for example.

     

    Also, if you configure Failsafe actions and have a HA pair, you should test it again after the upgrade to make sure that in case of failover or connectivity loss, everything goes fine