NAT not working after software update

​Hi Nils,

thank you for this hint, but we already found this setting this night as well.

We changed it to "All Traffic" like in your screenshot, but still the same behavior. Or is this setting not active immediately? And we also compared it with the settings of the old cluster running on 10.2.4, but here also the default "TCP & UDP only" were configured. Or is this any kind of change in behavior between these versions?

As visible in the provided tcpdump, we verified that icmp will be accepted and is not denied. But it looks like that the internal communication between the BIGIP and the internal server is faulty. Either the packets will not be send out at all or a wrong context/Interface will be used. How can this be further analyzed?

Thank you!

Ciao Stefan :)