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20040820: nullproc_6 errors from atm.geo.nsf.gov

>From: David Fitzgerald <address@hidden>
>Organization: Millersville University of Pennsylvania
>Keywords: 200408141648.i6MGmfaW028555 IDD DNS

Hi Dave,

>Following up on the DNS errors between atm.geo.nsf.gov and twister, I just
>restarted the ldm on twister today and once again I am seeing nullproc_6
>errors, and I'm sure atm is getting errors in its log file.  If I let my ldm
>go, it will eventually connect to atm, but not after an hour or so.  This
>has to be some DNS or routing problem between MU and nsf.gov.  Could you
>send me the DNS server(s) that atm uses

'atm' is setup with its own caching name server:

% nslookup twister.millersville.edu
Note:  nslookup is deprecated and may be removed from future releases.
Consider using the `dig' or `host' programs instead.  Run nslookup with
the `-sil[ent]' option to prevent this message from appearing.

Non-authoritative answer:
Name:   twister.millersville.edu

>and a traceroute from atm to twister?

Here it is:

% traceroute twister.millersville.edu
traceroute to twister.millersville.edu (, 30 hops max, 40 byte 
 1  colima.nsf.gov (  7 ms  1 ms  1 ms
 2  arlg-nsf.maxgigapop.net (  2 ms  3 ms  1 ms
 3  dcne-so3-0-0.maxgigapop.net (  1 ms  2 ms  5 ms
 4  abilene-rtr.maxgigapop.net (  4 ms  20 ms  16 ms
 5 (  24 ms  6 ms  4 ms
 6 (  6 ms  6 ms  6 ms
 7 (  11 ms  124 ms *
 8 (  50 ms  35 ms  37 ms
 9 (  36 ms  12 ms  12 ms
10 (  12 ms  12 ms  12 ms

>Our networking guys want this data to troubleshoot the problem.

I'll be interested in what they have to say.


No worries.


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