DragonFly bugs List (threaded) for 2005-01
IPFW2 layer2 support broken.
IPFW2 appears to be broken with respect to filtering layer2 traffic.
When active all incoming packets are dropped.
The logging shows incoming packets being accepted at layer2 but then not
appearing at layer3. Locally generated outgoing packets are processed by
IPFW2 at layer3 and layer2 and do successfully exit the router. (The
resulting incoming traffic is then dropped.)
This is similar to the problem I am experiencing with certain TCP
connections via divert sockets in that the packets vanish after being
processed and accepted by IPFW2.
[ Desktop ] -------- [ DragonFly ]
00100 4 240 allow log ip from any to any layer2
00200 0 0 allow log ip from any to any
65535 0 0 allow ip from any to any
itx kernel: ipfw: 100 Accept ICMP:8.0 192.168.50.20 192.168.50.1 in
itx last message repeated 6 times