How to use IPFW to filter routing

Hi there, I have a router from my ISP giving me a connection to the internet ans SIP. Behind I have a FreeBSD-Box which should route and seperate my VLANS. The setup is like this: ++ ++ ++ VLAN1 10.10.10.0/24

[Bug 209680] ipfw: when enabled, net connections time out/ssh results in "broken pipe"

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209680 --- Comment #12 from Fabian Keil --- I'm still not using ipfw, but the patch from comment two seems to have fixed the issue for me. The patch from comment three should be safe to test. Running "vmstat -z" while the