nmap scans

[hamba]

Hi

I'm getting the following messages from nmap when pf is enabled. Once I disable pf they don't happen

sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49569 > ip2:16236 S ttl=54 id=43546 iplen=11264  seq=3073165861 win=3072 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49569 > ip2:16235 S ttl=48 id=49636 iplen=11264  seq=3073165861 win=1024 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49569 > ip2:16234 S ttl=57 id=13781 iplen=11264  seq=3073165861 win=2048 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49569 > ip2:16233 S ttl=40 id=32511 iplen=11264  seq=3073165861 win=1024 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49569 > ip2:16232 S ttl=51 id=33388 iplen=11264  seq=3073165861 win=4096 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49569 > ip2:16231 S ttl=55 id=41392 iplen=11264  seq=3073165861 win=4096 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49571 > ip2:16167 S ttl=47 id=35811 iplen=11264  seq=3073296935 win=4096 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49571 > ip2:16166 S ttl=53 id=49936 iplen=11264  seq=3073296935 win=2048 <mss 1460>
sendto in send_ip_packet: sendto(7, packet, 44, 0, ip2, 16) => Operation not permitted
Offending packet: TCP ip1:49571 > ip2:16165 S ttl=51 id=3493 iplen=11264  seq=3073296935 win=4096 <mss 1460>
Omitting future Sendto error messages now that 10 have been shown.  Use -d2 if you really want to see them.
Increasing send delay for ip2 from 0 to 5 due to max_successful_tryno increase to 5

I am allowing everything to go out as you can see from the following rules.

# pass out all
pass out quick on $ext_if proto tcp all
pass out quick on $ext_if proto udp all
pass out quick on $ext_if proto icmp all

Does any one know how to get this fixed?

Thanks
hamba