ndt-users list created

[Richard Carlson <>]

Hi Chris;

2 things.

1) The new ISO image should have NDT ver 3.4.1 installed.  Please verify 
this by running the command "/usr/local/sbin/web100srv -h"  Send me the 
output of this command.  3.4.1 should handle the protocol error properly, 
if it doesn't I would be interested in learning why.

2) IPv6 support should be a loadable module.  Check this by running the 
/sbin/lsmod command.  You should be able to disable the v6 stack by 
removing this module (/sbin/rmmod ipv6).  You should also verify that the 
interface doesn't have a v6 address (/sbin/ifconfig -a).  You might need to 
stop/start the network and you may need to modify the network config file, 
to get the v6 addresses dropped.

Can you send me a tcpdump file showing this behavior?

Thanks;
Rich

At 01:30 PM 7/18/2007, Christopher Nicholas Florio wrote:
> Rich,
>
> The development ISO still gives protocol error with the --ipv4 (also
> the -4, I tried both) args to the web100srv.
>
> Would it be possible to get an ISO that has IPV6 disabled at the
> kernel level to try that (I don't know if that would make any
> difference or not, I'm grasping at straws).
>
> Thanks for the assistance!!!!!
>
> Chris
>
>
> On Jul 17, 2007, at 5:52 PM, Richard Carlson wrote:
>
> > Hi Chris;
> >
> > There is some kind of bug in the web100 library code that is
> > periodically failing.  It may help to debug this if you tell me
> > what kind of HW you are using.  In the mean time you can try
> > running my development ISO image.  You can download it from http:// 
> > people.internet2.edu/~rcarlson/ndt-files/NPtoolkit_v1.8-iptables.iso
> >
> > Let me know what happens.
> >
> > Rich
> > At 04:13 PM 7/17/2007, Christopher Nicholas Florio wrote:
> > > Hello,
> > >
> > > I'm getting the Protocol Error during the looking for Middleboxes on
> > > NDT using the latest NPtoolkit ISO.
> > >
> > > I have edited the /etc/init.d/ndt file and tried both -4 and --ipv4
> > > for the parameters for web100srv process (and have confirmed the
> > > web100srv process running with those).  Both tries I get the same
> > > error.
> > >
> > > The web100srv.oog shows:
> > >
> > > Received SIGALRM signal: terminating active web100srv process [3489]
> > > [Middlebox test]
> > >
> > > Any ideas?
> > >
> > >
> > > Also, it looks like my message keeps getting bounced back from the
> > > <mailto:>
> > >  list.
> > >
> > >
> > >
> > >
> > > Chris Florio
> > >
> > > ITS Control Center
> > >
> > > 211 Manning Drive
> > >
> > > Suite 3001, ITS Manning Bldg
> > >
> > > CB 3420
> > >
> > > Chapel Hill, NC 27599
> > >
> > > 919-843-8310 (o)
> > >
> > > 919-208-3905 (c)
> >
> > ------------------------------------
> >
> >
> >
> > Richard A. Carlson                              e-mail:
> >
> > Network Engineer                                phone:  (734) 352-7043
> > Internet2                                       fax:    (734) 913-4255
> > 1000 Oakbrook Dr; Suite 300
> > Ann Arbor,  MI  48104

------------------------------------



Richard A. Carlson                              e-mail: 

Network Engineer                                phone:  (734) 352-7043
Internet2                                       fax:    (734) 913-4255
1000 Oakbrook Dr; Suite 300
Ann Arbor,  MI  48104