v7.5 [stable] is released!

[raimondsp]

*) l3hw - fixed HW offloaded NAT;

Interesting, on my CCR2116 l3hw nat was working fine for me before 7.5. Post 7.5 traffic that is natted has high % drop rate so high not even a TLS session can establish. Disabling l3hw removes the packet loss behavior.

I confirmed this on my 2115 as well. L3HW switching was enabled on the switch and NAT worked prior to 7.5. After upgrade NAT was broken until I disabled L3HW switching on the switch.

Before 7.5, FastTrack NAT connections could be reported as hw-offloaded despite still getting processed by the CPU. In 7.5 those are actually hw-offloaded. Maybe the problem is that the hardware cannot handle some types of connections (e.g. a tunneled connection), so those shouldn’t be offloaded in the first place. Please create a support ticket, so we can investigate the problem.