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

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RishiK's avatar
RishiK
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Feb 11, 2021

IP Source Routing

Hello DevCentral,

 

This question may have already been answered before but I am unable to find any articles which advise on the default IP Source Routing behaviour by BigIP.

 

Is IP Source Routing disabled by default on F5 LTM ? If yes, can you please advise where can i find this information in a KB article.

 

The reason I ask is we need to ensure if we are impacted by the following vulnerability.

 

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24074

 

Regards

RK

1 Reply

  • asked a couple years ago also, check the DB variable

     

    https://devcentral.f5.com/s/question/0D51T00006j3PQ4/ipsource-routing-enabled-vulnerability