We have a firewall in place already. We have developed a new web
application. The publically accessible web servers are located on one secure
segment. These web servers must talk to application servers and SQL systems
on another segment on the firewall. This is where we are running into
problems. If the systems are hooked into one hub the transactions work
flawlessly. When the systems are split up onto the two secure segments the
transactions do not go though. There are no dropped packets. Communication
from one segment to another is by Microsoft's DTC (Distributed Transaction
Coordinator) which will be using OBDC.
I am suspecting that one of the Microsoft DTC components is not talking
through layer 3 IP but on a layer 2 MAC address. Does anybody have any
experience running the DTC components through a firewall. I am on the right
track on hunting down the problem.
Please add your two cents worth.
Politically Correct Virus: Doesn't refer to itself as a virus- instead,
refers to itself as an "electronic micro-organism." --- Mark Kaye
Peter Watson
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