The build with updated code from the last two days doesn't forward traffic anymore.
As where my build from last saturday had no problems, two days later, meaning now, no traffic is forwarded by the acm3200 linksys. (rango).
The config is exactly the same, nothing changed there.
Looking at the sysctl -a forwarding is all the same.
What changed that caused this? The change did occur in the last three days.