stopping multicast packets from going upstream

  • Thread starter Thread starter Scott Townsend
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S

Scott Townsend

We are setting up a lab and want to ghost images of the PCs using multicast
packets.

All the machines are on one switch. When we initiate the multicast image
session it floods the upstream network with the multicast packets causing
all their PCs to freeze.

What can I put in the mix to stop the multicast packets from going upstream?
I'm looking for some simple router??

Thanks,
Scott<-
 
Uh, yep; some simple router would do it. Even one of the cheap
consumer-grade routers would stop the problem. Hook the isolated machines
to the router and then use the WAN uplink to connect to the main network.
Route according to manual.

--
Richard G. Harper [MVP Shell/User] (e-mail address removed)
* PLEASE post all messages and replies in the newsgroups
* for the benefit of all. Private mail is usually not replied to.
* My website, such as it is ... http://rgharper.mvps.org/
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I'm too cheap to buy more hardware for just something that simple.

Just unplug the switch from the rest of the network temporarily. Plug it
back in when Ghost is finished. As long as the Ghost Server and the
"clients" are all able to reach each other that is all that matters and you
aren't going to have any other traffic happening there for the moment
anyway. If you use DHCP and the DHCP server is beyond the switch, then just
wait till the Ghost process has begun before you uplug the uplink cable
(they'll have their addresses by then).
 
Thank you all for your Suggestions.

Our DHCP server is on the other end of the Uplink and We didn't want to have
to add yet another DHCP Server.

We ended up using an old Netopia 910r as a Dual port Ethernet router. It
had a do not forward Multicast Packet option. I could not get our other
routers to see the RIP updates from it so I had to add static routers so
they knew where the new subnet was. Also configured the Netopia as a DHCP
Relay Agent so we could use the Existing DHCP Server to serve the new
subnet.

Seems to be going well so far.

Thanks again,
Scott<-


Phillip Windell said:
I'm too cheap to buy more hardware for just something that simple.

Just unplug the switch from the rest of the network temporarily. Plug it
back in when Ghost is finished. As long as the Ghost Server and the
"clients" are all able to reach each other that is all that matters and
you
aren't going to have any other traffic happening there for the moment
anyway. If you use DHCP and the DHCP server is beyond the switch, then
just
wait till the Ghost process has begun before you uplug the uplink cable
(they'll have their addresses by then).

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

Scott Townsend said:
We are setting up a lab and want to ghost images of the PCs using multicast
packets.

All the machines are on one switch. When we initiate the multicast image
session it floods the upstream network with the multicast packets causing
all their PCs to freeze.

What can I put in the mix to stop the multicast packets from going upstream?
I'm looking for some simple router??

Thanks,
Scott<-
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