I've been having issues with Error Code 58 on my DMZ for a while now.
Mostly sporadic, but it's become more persistent.  So, I just returned
from engaging our Network Engineer on sniffing a backup.  Here's the
info:

Started a manual backup of a Differential-Incremental,
Microsoft-Windows-NT policy for one of the clients listed, a Windows
2003 server.

Almost immediately, the queued job dropped switched to running, then to
failed, error 58.

What the packets showed was a consistent conversation between the
server, source port 571 and client, d port 13782.  

The 18th packet a SYN packet, sourced from the client, s port 666 (doom)
to server 13724, with a SEQ = 0 and ACK = 0. 

Server sends a SYNACK Seq = 0, Ack = 1.  

Client comes back with a SYNACK SEQ = 1, ACK = 1 and then the server
sends a RESET.

So, here's the questions:

What caused the shift in ports?  And I suppose that will go to answering
the failed job.  Go to NBU Support with this one?

Jason Brooks

------------
Jason Brooks
Computer Systems Engineer
IITS - Longwood University
voice - (434) 395-2916
fax - (434) 395-2035
mailto:<brooksje AT longwood DOT edu>