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

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edgranados_1975's avatar
edgranados_1975
Icon for Nimbostratus rankNimbostratus
Oct 21, 2016

Inet port exhaustion

Getting Inet port exhaustion on 10.xxx.xxx.xxx to 10.xxx.xxx.xxx:443   We have migrated from a 10.2.3 box to a new 11.6.1 box, after a few hours we started to see this alarm. 10.xxx.xxx.xxx:443 is...
application delivery
LTM
Jinshu's avatar
Jinshu
Icon for Cirrus rankCirrus
Oct 21, 2016

Connections are defined by the source IP:port and destination IP:port combination. The most common situation is that port exhaustion happens on the source side, when they're headed for a common port.

 

You are seeing this alerts on self IP address because of your SNAT (automap) configuration.

 

The simple fix is to add more addresses to the SNAT pool and/or create a unique SNAT pool per LB pool.

 

Please go through the F5 solution for this. https://support.f5.com/kb/en-us/solutions/public/7000/800/sol7820.html?sr=15280517exhaustion

 

-Jinshu