Firewall/NAT

Hi,

I'm using 1.3b15 and I have built in OLSRD in the Monowall image and using it on a PCEngines ALIX and on WRAP.
OLSRD seems to work fine when the Mono has just booted, I see the OLSRD UPD_698 packets go out the
ath0 interface. But after a while (with variations) the packets don't go out anymore and the OSLRD rouiting breaks.

When I do a ipfstat -oh is see:
Mono#ipfstat -oth
8 pass out quick on lo0 all
0 pass out quick on sis0 proto udp from 192.168.2.1/32 port = bootps to any port = bootpc
0 pass out quick on vr1 proto udp from 192.168.2.1/32 port = bootps to any port = bootpc
0 pass out quick on vr2 proto udp from 192.168.2.1/32 port = bootps to any port = bootpc
0 pass out quick on ath0 proto udp from any port = bootpc to any port = bootps
0 pass out quick on sis0 all keep state
33 pass out log quick on ath0 all keep state
0 pass out quick on vr1 all keep state
0 pass out quick on vr2 all keep state
1360 block out log quick all

The number of blocks on last rule seems keep going up and it seems to to be blocking all the OLSRD UDP packets.
For incomming rules I have permit any for every interface.

I'v done a lot of troubleshooting already, but I can't seem to find out why after some time (can be hours, but also days),
the traffic gets blocked. Also when I edit a firewall rule and Save-> Apply, the traffic gets to go through for some time again.
So reloading the ruleset seems to reset something.

Hope somebody can help or shed some light on this problem...

Regards,
Flip

Anybody any idea's about my problem?