Date: Tue, 16 Sep 2003 23:55:12 +0200 (CEST) From: <pilax@freesurf.fr> To: <freebsd-hackers@freebsd.org> Subject: pppoe - nmap - No buffer space available Message-ID: <2681.81.248.224.94.1063749312.squirrel@arlette.freesurf.fr>
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Hi all I've got a pppoe gateway with freebsd 5.1-release and two nics : a lan nic (RFC 1918) and a pppoe nic. (the same thing append with a 4.7-release...and older versions of nmap) When I launch nmap to test a machine on the inside : fine ! But when I launch nmap to test a machine on the outside (via tun0) I've got this message : ---------------- snip ------------------------ nmap -sS -O -vv -r -P0 X.X.X.X Starting nmap 3.45 ( http://www.insecure.org/nmap/ ) at 2003-09-16 23:03 CEST Host X.X.X.X appears to be up ... good. Initiating SYN Stealth Scan against X.X.X.X at 23:03 Adding open port 22/tcp sendto in send_tcp_raw: sendto(3, packet, 40, 0, X.X.X.X, 16) => No buffer space available Sleeping 15 seconds then retrying ---------------- snip ------------------------ Here is what I tried : Switch nic (fxp0 <-> xl0) Tune kern.ipc.nmbufs Raise kern.ipc.maxsockets above 35000 see netstat -m (seems regular) According to tcpdump nmap stop running after port 230. I've also tried the mailing-lists archives, the web and google groups : NOTHING ! Which informations do I provide you to help me ? Thanks ---------------------------------------------------------------- Ce service de mailing vous est offert par http://www.freesurf.fr. FreeSurf, votre acces ADSL a partir de 29 euros/mois http://www.freesurf.fr/adsl/
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