[AG-TECH] Unicast issues between Utah and Kansas.

[Jimmy Miklavcic]

First I want to thank those who responded to my query regarding NAT'ed
networks. I forwarded the info to Kansas and I don't know whether it
helped solve anything. Our last troubleshooting session revealed that
both sites are sending to the bridge but neither site sees the other's
packets on their respective side of the bridge.
 
We were connected to the MSP bridge on Wednesday (11/05) at 13:00 -
14:00 MST, each site using unicast. We confirmed, via wireshark, that
video data from my machine (155.101.28.195) was transmitting to the MSP
bridge (141.142.224.41) but Kansas did not see the data coming from the
bridge. This was the same symptom on Kansas' side (169.147.10.52) NAT'ed
from an internal private network. Kansas pretty much allows all traffic
from all bridges based on IP addresses (not just ports). RAT works just
fine. This behavior is the same no matter which bridge or venue we use.
Both systems are running Windows XP, Kansas is using AGtk 3.1 and I'm
running 3.2 beta.
 
So, I was wondering if someone [maybe Myk at NCSA ;-)] could help us out
by monitoring traffic through their respective bridge to see if anything
seems funky. We can park our two nodes in a venue and use the
appropriate bridge so that the traffic or logs could be checked. Please
let me know.
 
Another very strange thing that Kansas is experiencing on their node is
a duplicate entry of their system in the AG Node Management application.
There's one entry that has the appropriate address with the audio
service and video service. Then there's a second entry that is listed as
":11000" with the audio service and video service. We have deleted the
bogus entry and saved the config file as the system configuration. When
they start up again, the bogus entry returns along with the appropriate
one. It's like the system has a dual identity. The first entry is
associated with the private IP address. If any one has seen this, I
could use some insight. This is actually driving me nuts and if I had
any hair, I'd be pulling at it.
 
Thanks for your time,
 
Jimmy
 
 -- 
Jimmy Miklavcic 
Multimedia Specialist 
Jimmy.Miklavcic at utah.edu <mailto:Jimmy.Miklavcic at utah.edu>  

UNIVERSITY OF UTAH 
CTR FOR HIGH PERFORM COMPUTING 
155 SOUTH 1452 EAST RM 405 
SALT LAKE CITY, UT 84112-0190 

Office: 801.585.9335 
 Fax: 801.585.5366 

http://www.anotherlanguage.org <http://www.anotherlanguage.org/>  

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/ag-tech/attachments/20081107/a6b838a5/attachment.htm>