Re: [Plugins-writers] Re: Nessus not scanning

From: Richard Moore (rich@private)
Date: Tue Feb 03 2004 - 02:52:27 PST

  • Next message: JHORVAT1@private: "RE:[Plugins-writers] Re: Nessus not scanning"

    Renaud Deraison wrote:
    
    > On Fri, Jan 30, 2004 at 10:50:00AM -0500, JHORVAT1@private wrote:
    > 
    >>I am having issues somewhat similar to what Ravi was seeing.  I want to enable
    >>the "Ping the remost host" option to do an ICMP ping because I'm scanning
    >>large subnets and want to move on quickly if something doesn't appear to be
    >>up.  The "Ping the remote host" option calls ping_host.nasl, and using
    >>Ethereal I found what seems to be the problem.  Nessus sends out an ICMP echo
    >>request, but hosts never reply, apparently because the IP header checksum in
    >>the ICMP packet is 0!  The relevant part of ping_host.nasl is below (sorry if
    >>the formatting is goofy):
    
    Is this by any chance on a SuSE 9.0 box? There is a bug in the kernel on 
    9.0 which breaks nmap etc in just this way. The work around is to let 
    the kernel compute the header checksum for you.
    
    Cheers
    
    Rich.
    
    
    _______________________________________________
    Plugins-writers mailing list
    Plugins-writers@private
    http://mail.nessus.org/mailman/listinfo/plugins-writers
    



    This archive was generated by hypermail 2b30 : Tue Feb 03 2004 - 02:53:44 PST