multicast IP addresses

[kr6655]

Why does Windows XP Home not permit adapter IP addresses
to be set in Class D space for multicasting. It displays
an error message that IP address (1st byte) cannot be
higher than 223.

[Dusty Harper {MS}]

Because a multicast address is really not meant to identify a specific
adapter. Multicast addresses are joined using IGMP Joins. this will
associate the adapter with that group.
--
--
Dusty Harper
Microsoft Corporation
----------------------------------------------------------------------------
This posting is provided "AS IS", with NO warranties and confers NO rights
----------------------------------------------------------------------------

"kr6655" > wrote in message
...
> Why does Windows XP Home not permit adapter IP addresses
> to be set in Class D space for multicasting. It displays
> an error message that IP address (1st byte) cannot be
> higher than 223.

[kr6655]

I have configured the application to use a class d address and it will stream
video to the next computer over a wired connection, but that computer will
not forward the multicasts to the WLAN adapter in the same machine. I want to
take in streaming video over the wired connection and forward it to multiple
wireless clients. What needs to be done to get the machine to forward the
multicast traffic?

"Dusty Harper {MS}" wrote:

> Because a multicast address is really not meant to identify a specific
> adapter. Multicast addresses are joined using IGMP Joins. this will
> associate the adapter with that group.
> --
> --
> Dusty Harper
> Microsoft Corporation
> ----------------------------------------------------------------------------
> This posting is provided "AS IS", with NO warranties and confers NO rights
> ----------------------------------------------------------------------------
>
> "kr6655" > wrote in message
> ...
> > Why does Windows XP Home not permit adapter IP addresses
> > to be set in Class D space for multicasting. It displays
> > an error message that IP address (1st byte) cannot be
> > higher than 223.
>
>
>

[Dusty Harper {MS}]

You need to have a machine that is connected to both the wired and wireless
network that has some sort of Multicast Forwarding capabilities. Windows
Server's RRAS allows for this and includes IGMP
--
--
Dusty Harper
Microsoft Corporation
----------------------------------------------------------------------------
This posting is provided "AS IS", with NO warranties and confers NO rights
----------------------------------------------------------------------------

"kr6655" > wrote in message
...
> I have configured the application to use a class d address and it will
stream
> video to the next computer over a wired connection, but that computer will
> not forward the multicasts to the WLAN adapter in the same machine. I want
to
> take in streaming video over the wired connection and forward it to
multiple
> wireless clients. What needs to be done to get the machine to forward the
> multicast traffic?
>
> "Dusty Harper {MS}" wrote:
>
> > Because a multicast address is really not meant to identify a specific
> > adapter. Multicast addresses are joined using IGMP Joins. this will
> > associate the adapter with that group.
> > --
> > --
> > Dusty Harper
> > Microsoft Corporation
>
> --------------------------------------------------------------------------
--
> > This posting is provided "AS IS", with NO warranties and confers NO
rights
>
> --------------------------------------------------------------------------
--
> >
> > "kr6655" > wrote in message
> > ...
> > > Why does Windows XP Home not permit adapter IP addresses
> > > to be set in Class D space for multicasting. It displays
> > > an error message that IP address (1st byte) cannot be
> > > higher than 223.
> >
> >
> >

[kr6655]

Can this be done if the OS is Windows XP Home? I think I have enabled the
IGMP and added ForwardMulitcast to the registry, but nothing is forwarded.


"Dusty Harper {MS}" wrote:

> You need to have a machine that is connected to both the wired and wireless
> network that has some sort of Multicast Forwarding capabilities. Windows
> Server's RRAS allows for this and includes IGMP
> --
> --
> Dusty Harper
> Microsoft Corporation
> ----------------------------------------------------------------------------
> This posting is provided "AS IS", with NO warranties and confers NO rights
> ----------------------------------------------------------------------------
>
> "kr6655" > wrote in message
> ...
> > I have configured the application to use a class d address and it will
> stream
> > video to the next computer over a wired connection, but that computer will
> > not forward the multicasts to the WLAN adapter in the same machine. I want
> to
> > take in streaming video over the wired connection and forward it to
> multiple
> > wireless clients. What needs to be done to get the machine to forward the
> > multicast traffic?
> >
> > "Dusty Harper {MS}" wrote:
> >
> > > Because a multicast address is really not meant to identify a specific
> > > adapter. Multicast addresses are joined using IGMP Joins. this will
> > > associate the adapter with that group.
> > > --
> > > --
> > > Dusty Harper
> > > Microsoft Corporation
> >
> > --------------------------------------------------------------------------
> --
> > > This posting is provided "AS IS", with NO warranties and confers NO
> rights
> >
> > --------------------------------------------------------------------------
> --
> > >
> > > "kr6655" > wrote in message
> > > ...
> > > > Why does Windows XP Home not permit adapter IP addresses
> > > > to be set in Class D space for multicasting. It displays
> > > > an error message that IP address (1st byte) cannot be
> > > > higher than 223.
> > >
> > >
> > >
>
>
>

[Dusty Harper {MS}]

Where did you hear about ForwardMulticasts? I'd have to see if this is
valid. To my understanding its not, RRAS is the only MS product with IGMP
service capabilities ( It creates a Multicast Forwarding table and
communicates with other Multicast enabled routers )

--
--
Dusty Harper
Microsoft Corporation
----------------------------------------------------------------------------
This posting is provided "AS IS", with NO warranties and confers NO rights
----------------------------------------------------------------------------

"kr6655" > wrote in message
...
> Can this be done if the OS is Windows XP Home? I think I have enabled the
> IGMP and added ForwardMulitcast to the registry, but nothing is forwarded.
>
>
> "Dusty Harper {MS}" wrote:
>
> > You need to have a machine that is connected to both the wired and
wireless
> > network that has some sort of Multicast Forwarding capabilities.
Windows
> > Server's RRAS allows for this and includes IGMP
> > --
> > --
> > Dusty Harper
> > Microsoft Corporation
>
> --------------------------------------------------------------------------
--
> > This posting is provided "AS IS", with NO warranties and confers NO
rights
>
> --------------------------------------------------------------------------
--
> >
> > "kr6655" > wrote in message
> > ...
> > > I have configured the application to use a class d address and it will
> > stream
> > > video to the next computer over a wired connection, but that computer
will
> > > not forward the multicasts to the WLAN adapter in the same machine. I
want
> > to
> > > take in streaming video over the wired connection and forward it to
> > multiple
> > > wireless clients. What needs to be done to get the machine to forward
the
> > > multicast traffic?
> > >
> > > "Dusty Harper {MS}" wrote:
> > >
> > > > Because a multicast address is really not meant to identify a
specific
> > > > adapter. Multicast addresses are joined using IGMP Joins. this
will
> > > > associate the adapter with that group.
> > > > --
> > > > --
> > > > Dusty Harper
> > > > Microsoft Corporation
> > >
> >
> --------------------------------------------------------------------------
> > --
> > > > This posting is provided "AS IS", with NO warranties and confers NO
> > rights
> > >
> >
> --------------------------------------------------------------------------
> > --
> > > >
> > > > "kr6655" > wrote in message
> > > > ...
> > > > > Why does Windows XP Home not permit adapter IP addresses
> > > > > to be set in Class D space for multicasting. It displays
> > > > > an error message that IP address (1st byte) cannot be
> > > > > higher than 223.
> > > >
> > > >
> > > >
> >
> >
> >

[kr6655]

I learned about EnableMulticastForwarding from the Knowledge Base at
Microsoft. What OS has RRAS?

"kr6655" wrote:

> Why does Windows XP Home not permit adapter IP addresses
> to be set in Class D space for multicasting. It displays
> an error message that IP address (1st byte) cannot be
> higher than 223.
>

[Dusty Harper {MS}]

Any of the Server Skus for Windows 2000 and Windows 2003, and NT4 Server
with SP4+ has RRAS as an addin component.

That regkey is supported in XP Professional

http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/techref/en-us/Default.asp?url=/Resources/Documentation/windowsserv/2003/all/techref/en-us/w2k3tr_mcast_tools.asp
--
--
Dusty Harper
Microsoft Corporation
----------------------------------------------------------------------------
This posting is provided "AS IS", with NO warranties and confers NO rights
----------------------------------------------------------------------------

"kr6655" > wrote in message
...
> I learned about EnableMulticastForwarding from the Knowledge Base at
> Microsoft. What OS has RRAS?
>
> "kr6655" wrote:
>
> > Why does Windows XP Home not permit adapter IP addresses
> > to be set in Class D space for multicasting. It displays
> > an error message that IP address (1st byte) cannot be
> > higher than 223.
> >

[kr6655]

Thanks for the suggestions, but I had already added all the registry items
and upgraded to Windows XP Professional it still will not route the multicast
traffic. I can ping all of the computers so unicast works, but not multicast.
It looks like we will have to run Linux on the computer to get the routing to
work. Thanks for the replies.

"Dusty Harper {MS}" wrote:

> Any of the Server Skus for Windows 2000 and Windows 2003, and NT4 Server
> with SP4+ has RRAS as an addin component.
>
> That regkey is supported in XP Professional
>
> http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/techref/en-us/Default.asp?url=/Resources/Documentation/windowsserv/2003/all/techref/en-us/w2k3tr_mcast_tools.asp
> --
> --
> Dusty Harper
> Microsoft Corporation
> ----------------------------------------------------------------------------
> This posting is provided "AS IS", with NO warranties and confers NO rights
> ----------------------------------------------------------------------------
>
> "kr6655" > wrote in message
> ...
> > I learned about EnableMulticastForwarding from the Knowledge Base at
> > Microsoft. What OS has RRAS?
> >
> > "kr6655" wrote:
> >
> > > Why does Windows XP Home not permit adapter IP addresses
> > > to be set in Class D space for multicasting. It displays
> > > an error message that IP address (1st byte) cannot be
> > > higher than 223.
> > >
>
>
>

[kr6655]

I am disappointed that we had to switch to Linux to get the routing done. I
am surprised that Microsoft doesn't respond to such a problem with a clear
answer.

"kr6655" wrote:

> Thanks for the suggestions, but I had already added all the registry items
> and upgraded to Windows XP Professional it still will not route the multicast
> traffic. I can ping all of the computers so unicast works, but not multicast.
> It looks like we will have to run Linux on the computer to get the routing to
> work. Thanks for the replies.
>
> "Dusty Harper {MS}" wrote:
>
> > Any of the Server Skus for Windows 2000 and Windows 2003, and NT4 Server
> > with SP4+ has RRAS as an addin component.
> >
> > That regkey is supported in XP Professional
> >
> > http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/techref/en-us/Default.asp?url=/Resources/Documentation/windowsserv/2003/all/techref/en-us/w2k3tr_mcast_tools.asp
> > --
> > --
> > Dusty Harper
> > Microsoft Corporation
> > ----------------------------------------------------------------------------
> > This posting is provided "AS IS", with NO warranties and confers NO rights
> > ----------------------------------------------------------------------------
> >
> > "kr6655" > wrote in message
> > ...
> > > I learned about EnableMulticastForwarding from the Knowledge Base at
> > > Microsoft. What OS has RRAS?
> > >
> > > "kr6655" wrote:
> > >
> > > > Why does Windows XP Home not permit adapter IP addresses
> > > > to be set in Class D space for multicasting. It displays
> > > > an error message that IP address (1st byte) cannot be
> > > > higher than 223.
> > > >
> >
> >
> >

[Dusty Harper {MS}]

I dug around and talked with the devs. They confirmed for me that this key
is only used by RRAS. If it were to work, there is no means to actually
listen to group joins etc. So in order for your scenario to work, you need
to have Server with RRAS and IGMP installed.

I'll mail the author of the mentioned article and have them correct their
inaccuracy for the key.

--
--
Dusty Harper
Microsoft Corporation
----------------------------------------------------------------------------
This posting is provided "AS IS", with NO warranties and confers NO rights
----------------------------------------------------------------------------

"kr6655" > wrote in message
...
> Thanks for the suggestions, but I had already added all the registry items
> and upgraded to Windows XP Professional it still will not route the
multicast
> traffic. I can ping all of the computers so unicast works, but not
multicast.
> It looks like we will have to run Linux on the computer to get the routing
to
> work. Thanks for the replies.
>
> "Dusty Harper {MS}" wrote:
>
> > Any of the Server Skus for Windows 2000 and Windows 2003, and NT4 Server
> > with SP4+ has RRAS as an addin component.
> >
> > That regkey is supported in XP Professional
> >
> >
http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/techref/en-us/Default.asp?url=/Resources/Documentation/windowsserv/2003/all/techref/en-us/w2k3tr_mcast_tools.asp
> > --
> > --
> > Dusty Harper
> > Microsoft Corporation
>
> --------------------------------------------------------------------------
--
> > This posting is provided "AS IS", with NO warranties and confers NO
rights
>
> --------------------------------------------------------------------------
--
> >
> > "kr6655" > wrote in message
> > ...
> > > I learned about EnableMulticastForwarding from the Knowledge Base at
> > > Microsoft. What OS has RRAS?
> > >
> > > "kr6655" wrote:
> > >
> > > > Why does Windows XP Home not permit adapter IP addresses
> > > > to be set in Class D space for multicasting. It displays
> > > > an error message that IP address (1st byte) cannot be
> > > > higher than 223.
> > > >
> >
> >
> >