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

Forum Discussion

steelplate_8766's avatar
steelplate_8766
Icon for Nimbostratus rankNimbostratus
May 25, 2010

sNAT to Windows server and port collision

Hi, I have an F5 doing sNAT, and the problem I face is that the windows server keeps the port in time_wait (currently default 240 seconds windows 2003 server). The F5 will attempt to reuse the client...
config
design
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
May 26, 2010
You should be able to modify this behavior with a custom TCP profile. See this post from Deb for more info on OneConnect and the TCP profile options (and a few related solutions):

 

 

OneConnect Transformations reuse from same source IP address and port number?

 

http://devcentral.f5.com/Forums/tabid/1082223/asg/52/showtab/groupforums/aff/31/aft/17949/afv/topic/Default.aspx

 

 

SOL7559: Overview of the TCP profile

 

https://support.f5.com/kb/en-us/solutions/public/7000/500/sol7559.html

 

 

SOL7208: Overview of the OneConnect profile

 

https://support.f5.com/kb/en-us/solutions/public/7000/200/sol7208.html

 

 

OneConnect wiki page

 

http://devcentral.f5.com/wiki/default.aspx/AdvDesignConfig/oneconnect

 

 

Aaron