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

Forum Discussion

Scott_Hopkins's avatar
Scott_Hopkins
Icon for Nimbostratus rankNimbostratus
Nov 16, 2009

Changing TCP Profile basde on source IP

I haven't found a conclusive answer to this from the wiki or from documentation, and I wanted to get some feedback. Is it possible to change the TCP Profile on the client side of the Vir...
application delivery
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Nov 16, 2009
Hi Scott,

 

 

You can retrieve which profile is in use with the PROFILE:: commands. But there isn't a way to select the TCP profile. Nor can you modify the settings from an iRule. You could open a request for enhancement case with F5 Support if this is something you'd like to see F5 consider adding.

 

 

From past posts, it seems like the LAN optimized TCP profile might offer better performance than the WAN profile even for clients with higher latency connections:

 

 

FastL4 vs Optimized TCP Profiles

 

http://devcentral.f5.com/Default.aspx?tabid=53&forumid=31&tpage=1&view=topic&postid=31604

 

 

Aaron