[AG-TECH] Firewall and unicast questions
Thomas D. Uram
turam at mcs.anl.gov
Fri Apr 7 09:05:25 CDT 2006
The machine has been down since Wednesday due to a power outage
here at the lab. It should come back up today, and will be refreshed
with Namgon's new code, in which a number of bugs have been fixed.
I'll send a note when this is done, encouraging people to try AGConnector
again. Note that the new client package will need to be installed.
In the future, if you notice problems with infrastructure, it would be
best to let us know. While we are notified by our monitoring if most things
(venue server, bridge server, etc.) go down, the UMTP server is not yet
On 4/6/06 9:48 PM, Nagykaldi, Zsolt F. (HSC) wrote:
> The UMTP server associated with the AG connector has been unreachable
> for over a month. The connector comes back with an error message and
> prompts to "use other server..", but there are no other options given.
> Any suggestions on what we supposed to do?
> _ _ _
> Zsolt Nagykaldi, PhD
> Research Associate, Clinical IT Specialist
> University Of Oklahoma Health Sciences Center
> Department Of Family And Preventive Medicine
> Oklahoma Center For Family Medicine Research
> 900 NE 10th Street
> Oklahoma City, OK 73104
> Phone: (405) 271-8000 Ext.:1-32212
> Fax: (405) 271-1682
> *From:* owner-ag-tech at mcs.anl.gov on behalf of NamGon Kim
> *Sent:* Thu 4/6/2006 7:42 PM
> *To:* Masullo, Chris F; ag-tech at mcs.anl.gov
> *Subject:* RE: [AG-TECH] Firewall and unicast questions
> Dear Chris,
> My name is Namgon Kim.
> I am developing a multicast connectivity solution for AG which can be
> used under firewall.
> AG Connector is the name of my solution.
> I hope you to test AG Connector in your network.
> It encapsulates multicast data of AG and uses one port number (8010) for
> connection with outside of firewall.
> If you use AG Connector, since what you need to do is opening 8010 port,
> firewall traversal will be easier.
> Your can download and see some documentation from here.
> If you need any question about AG Connector, let me know.
> - Namgon
> > -----Original Message-----
> > From: Masullo, Chris F [mailto:masullo at bnl.gov]
> > Sent: Friday, April 07, 2006 1:04 AM
> > To: ag-tech at mcs.anl.gov
> > Subject: [AG-TECH] Firewall and unicast questions
> > Hello All,
> > We currently have our AG nodes outside our firewall, however cyber
> > security
> > has told us that we need to move the systems inside our firewall. The
> > last
> > time I brought up this issue a number of years ago I was told that
> > multicast
> > would not get past our firewall. I have some questions regarding this
> > issue.
> > Has anyone successfully placed an AG VTC system behind a Cisco
> > Are there any issues using unicast mode for and AG node behind a
> > firewall?
> > If not then why not run unicast?
> > I have looked through the mailer however I do not see any answers to
> > these
> > Questions.
> > Thanks in advance
> > Chris Masullo Information Technology Division
> > Brookhaven National Laboratory Network Engineering & Operations
> > 61 Brookhaven Ave. Phone: (631) 344-2326
> > Upton, NY 11973 Fax: (631) 344-7688
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