Re: ISA Messenger 6.2

From: Robert Bird (RobertBird_at_discussions.microsoft.com)
Date: 08/17/04 

Date: Tue, 17 Aug 2004 10:11:02 -0700

You can't do initiated audio / video behind a ISA2000! If you re-read the
section starting Network address translation (NAT) then you should see why.
The section titled UPnP states that UPnP devices (like ISA2004) will work
however.

If I wanted to have an audio conversation with someone I have to start
talking to them Text Only and type in "Start Audio Please" they then will
initiate it and I can accept :-) Long winded but the only way with ISA2000.
Of course if they are also behind ISA2000 then that won't work :-(

You should be able to do file tranfers. To setup ISA2000 for this goto
www.isatools.org and download MSNIM.zip . Run that and you will also need the
Firewall Client on the client PC. Take a look at the vbs script for more info
on it.

Hope that helps further clearify the situation.

Rob

"Jimbo" wrote:

> Hi Robert,
>
> Great post. I have been wondering about this and wish to ask you to specify
> HOW you do this.
>
> From logging on to MSN 6.2, what then do you and your contact do exactly to
> initiate a video conference? What are the steps to follow?
>
> And, what did you have to do with ISA2000 to allow this?
>
> This info would be VERY helpful to me!
>
> Thanks,
>
> JS
>
>
> "Robert Bird" <RobertBird@discussions.microsoft.com> wrote in message
> news:34BD35AF-3E50-474A-B186-9CB2E46A8D7E@microsoft.com...
> > If you are using ISA2000 then you will be out of luck trying to initiate
> > anything other than text only stuff, unless you ask the other person to
> > start
> > it in a text seesion that is - like I do :-) This is because MSN 6.2 needs
> > a
> > uPnP enabled firewall and ISA2000 isn't. I believe ISA2004 is though, so
> > should work.
> >
> > Here is some text from a Microosft web page to explain further, related to
> > ISA2000:
> >
> > ISA Server Issues
> > There are several common issues that affect the general use of instant
> > messaging applications with firewall devices. For Microsoft Internet
> > Security
> > and Acceleration (ISA) Server with MSN Messenger and Windows Messenger,
> > these
> > include:
> >
> > . Complex protocols. The MSN Messenger protocol used by MSN Messenger and
> > Windows Messenger is a complex protocol that may use multiple ports to
> > connect to the messenger server and to send and receive data for some
> > instant
> > messaging features. ISA Server SecureNAT clients require an application
> > filter to handle complex protocols, and ISA Server does not provide such a
> > filter for the complex MSN Messenger protocol. Only the Firewall client
> > can
> > handle complex protocols without an application filter. This means that
> > SecureNAT (and Web Proxy clients) are limited to using only the text
> > messaging chat feature of MSN Messenger and Windows Messenger.
> >
> > . Network address translation (NAT). ISA Server NAT functionality protects
> > internal private IP addresses by translating private addresses to the
> > public
> > IP address of the ISA Server external interface, allowing a single
> > external
> > IP address to be shared between multiple internal clients. Some
> > client-to-client instant messaging features, such as VoIP, whiteboard, and
> > file transfers require that an internal computer behind the ISA Server
> > computer make its IP address known to an external computer. Because the
> > internal clients address cannot be used by an external client to initiate
> > a
> > communications session with the internal computer, the connection will
> > fail.
> >
> > . UPnP. UPnP-enabled NAT devices and firewalls can overcome NAT issues and
> > determine translated IP addresses. ISA Server is not UPnP-enabled.
> >
> > Rob
> >
> > "bucklebery@paradise.net.nz" wrote:
> >
> >> Hi
> >> My brother and I can use aduio only if he invites me - connects in 5
> >> secs.
> >> If I invite him it doesn't connect. Does this imply there is a different
> >> port used if I invite rather than just accept? If so which port - if not
> >> any
> >> thought would be greatly appreciated. Thans
> >>
> >> Cheers
> >> Ian
> >>
> >>
> >>
>
>
>

Relevant Pages

  • Re: Local computers cannot conect to the internet.
    ... Please run CEICW after you install ISA server. ... to configure the ISA to allow internal clients access Internet. ... Ensure client computer join SBS domain thru connectcomputer wizard. ...
    (microsoft.public.windows.server.sbs)
  • Re: Port forwarding to a client for VOIP
    ... the ports aren't doing anything are going anywhere. ... Instant Messaging with ISA Server ... Firewall client can handle complex protocols without an application filter. ... Microsoft Internet Security & Acceleration Server: ...
    (microsoft.public.isa.configuration)
  • Re: How to configure workstations so that *ALL* internet traffic goes via ISA Server 2004?
    ... First - your internal nic card for the isa server should have a fixed ip ... the web proxy client, the firewall client, or both then the default gateway ... the client computers to look at my ISA Server for internet. ...
    (microsoft.public.isaserver)
  • Re: ISA Messenger 6.2
    ... ISA server is not UPnP enabled. ... >>> Firewall Client on the client PC. ... For Microsoft Internet ... >>>>> Messenger, ...
    (microsoft.public.isaserver)
  • Re: Netmeeting ActiveX Control Issue
    ... > Internet NM users can initiate a data-only call to a specific internal NM ... The NM ActiveX Control CallTo: URL directs the Internet NM client ...
    (microsoft.public.internet.netmeeting)