Why do I get this message by the server ?

[Halid Faith]

I have a freebsd5.4 server. I sometimes get a message on the screen as below;

kernel: ipfw: pullup failed

What cause this problem cause ?

I see the below lines when I type netstat -ni

1# netstat -ni
Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
bge0   1500 <Link#1>      00:13:d4:51:5d:e9 1618711264     0 4211116941     0     0
bge0   1500 212.175.51.68 212.175.51.70      3389522     - 11038161     -     -
bge0   1500 fe80:1::213:d fe80:1::213:d4ff:        0     -        3     -     -
bge1   1500 <Link#2>      00:13:d4:51:5d:ea 307271458     0 808964464     0     0
bge1   1500 192.168.12.1 192.168.12.63    2276942     - 193982504     -     -
bge1   1500 fe80:2::213:d fe80:2::213:d4ff:        0     -        4     -     -
lo0   16384 <Link#3>                         1465002     0  1465002     0     0
lo0   16384 127           127.0.0.1          1463512     -  1463566     -     -
lo0   16384 ::1/128       ::1                      0     -        0     -     -
lo0   16384 fe80:3::1/64  fe80:3::1                0     -        0     -     -

sysctl net.inet.ip | grep queue
net.inet.ip.intr_queue_maxlen: 50
net.inet.ip.intr_queue_drops: 19512403

What shall I do ?

Thanks