nmap: No buffer space available

[Nico De Ranter <nico@sonycom.com>]

Hi,

I'm using nmap to scan for unauthorized webservers on my internal 
network (class A, 10.0.0.0/8) using the following command:

  nmap -p80 -v -T normal 10.0.0.0/8  2>&1 | tee /root/nmap.log

after the first 255 hosts I get the following message:

sendto in send_ip_raw: sendto(4, packet, 28, 0, 10.0.11.100, 16) => No buffer space available
Sleeping 15 seconds then retrying
sendto in send_ip_raw: sendto(4, packet, 28, 0, 10.0.11.100, 16) => No buffer space available
Sleeping 60 seconds then retrying

Any idea what buffers are running out of space? Anything I can do
to fix this?

Thanks in advance,

Nico


---------------------------------------------------------
 "It has been said that there are only two businesses that
  refer to customers as users: illegal drug trade and
               the computer industry." 
---------------------------------------------------------
Nico De Ranter
Sony Service Center (SDCE/VPE-B)
Sint Stevens Woluwestraat 55 (Rue de Woluwe-Saint-Etienne)
1130 Brussel (Bruxelles), Belgium, Europe, Earth
Telephone: +32 2 724 86 41 Telefax: +32 2 726 26 86
e-mail: nico.deranter@sonycom.com