[Ace-users] [tao-bugs] : Problem using multiple endpoints

Steve Carlucci Steve.Carlucci at ouncelabs.com
Thu Oct 11 22:53:42 CDT 2007

I upgraded our application to use the latest beta kit, and I am still
seeing the same behavior regarding multiple endpoints. Any ideas on the
problem that I described in my original e-mail? Thanks in advance for
any help.


-----Original Message-----
From: schmidt at dre.vanderbilt.edu [mailto:schmidt at dre.vanderbilt.edu] 
Sent: Wednesday, October 10, 2007 11:57 AM
To: Steve Carlucci
Cc: tao-bugs at cs.wustl.edu
Subject: Re: [tao-bugs] : Problem using multiple endpoints 

Hi Steve,

   Thanks for using the PRF.

>     TAO VERSION: 1.4.7
>     ACE VERSION: 5.4.7

You are using a very old version of TAO.  Please upgrade to ACE+TAO+CIAO
x.6.1 (i.e., ACE 5.6.1, TAO 1.6.1, and CIAO 0.6.1), which you can
download from


under the heading: "Latest Beta Kit."

The DOC groups at Washington University, UC Irvine, and Vanderbilt
University only provide "best effort" support for non-sponsors for the
latest release, as described in


Thus, if you need more "predictable" help for earlier versions of
ACE+TAO, I recommend that you check out


for a list of companies that will provide you with ACE+TAO commercial



>             Windows XP Professional (using Winsock2)
>             RedHat Enterprise Linux 3.0, 4.0
>             On Windows:
>             Microsoft Visual Studio .NET 2003
>             On Linux:
>             gcc 4.0.2
>     THE $ACE_ROOT/ace/config.h FILE [if you use a link to a platform-
>     specific file, simply state which one]:
>             On Windows:
>             config-win32.h
>             On Linux:
>             config-linux.h
>     THE $ACE_ROOT/include/makeinclude/platform_macros.GNU FILE [if you
>     use a link to a platform-specific file, simply state which one
>     (unless this isn't used in this case, e.g., with Microsoft Visual
>     C++)]:
>         EXECUTION
> [Please indicate whether ACE/TAO, your application, or both are
> Both
> I am seeing unexpected behavior when configuring my ORB to bind to
multiple endpoints. It appears that information about
> the first endpoint is always sent to clients, even if the client
attempted to connect to the ORB on a different endpoint.
> We are having a problem with the server component of our application
when we configure the ORB with multiple endpoints. We
> discovered this problem when one of our customers was attempting to
connect to our application's server through a proxy. In
> order to get this to work, we needed to add an additional endpoint and
use the hostname_in_ior option to specify the
> external IP address of the proxy. . This allowed the customer to
successfully connect through the proxy, but then was
> unable to connect from within the network because the ORB was
returning information that was specified in the first
> endpoint, namely the external IP address of the proxy that was
specified in the hostname_in_ior option. Here are the
> command line arguments that we were initializing the ORB with:
> "-ORBEndpoint iiop://
-ORBEndpoint iiop://
> -ORBDottedDecimalAddresses 1"
> The first endpoint was intended to allow clients to connect to the ORB
through the proxy, the second endpoint was intended
> to allow clients to connect to the ORB from within the same network.
However, when a client attempts to connect to the ORB
> on port 13200 (the second endpoint) from within the same network, the
ORB returns information to the client indicating that
> it should be talking to, which obviously fails since the
client cannot see the external IP address of the proxy.
> By switching the order of the endpoints on the command line, we can
get it to work one way or the other, but not both. I
> understand that we are using an old version, and we are looking at
upgrading in our next release, but is this a
> configuration problem, or a known bug/limitation? If this is a known
bug/limitation, has it been fixed in a later release?
> It is very possible that I don't have a full understanding of what is
going on here and that I am missing something simple,
> so I apologize in advance if that is the case. Any help is
> _______________________________________________
> tao-bugs mailing list
> tao-bugs at mail.cse.wustl.edu
> http://mail.cse.wustl.edu/mailman/listinfo/tao-bugs

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