Lawrence MacIntyre wrote:
This will work as long as none of the clients are clued enough to add host routes or alias addresses.
Yes, I assumed he were the admin of the site in question. If the clients have full control over their systems then this is a no-go.
Some linux boxes with bridges and bridge_filter might do the trick but he'd need to put one of those basically in front of each switch port.
I don't see an easy way to solve the problem.
Rene Gallati wrote:
Anton Glinkov wrote:
On Mon, July 19, 2004 15:25, Ed Wildgoose said:
the bridge thing is not possible.. the network is too big.. 300 machines.. with over 30 switches (only one of them is manageable) :( Basically I want to deny ethertype 0800 (IPv4) packets for that LAN. The only solution I thought of was to have a linux machine in this LAN that has all the possible IP addresses set on its interface.
Look, we can't help you until you explain the problem
WHY is it not possible to have a bridge? This only requires two network
cards?
I want to block the traffic between _ANY_ 2 of the machines in the network.
How about giving them a netmask of /32 instead of /24 (or whatever you have) so that they only see themselves in the same network and then giving them a static route to the default gw (since it is outside of the /32).
Then you can block all inter-client traffic at that single default gateway (or one hop "in front" of it, seen from the clients)
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C U
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