how to block shared connection!!

how to block shared connection of my client?

If they use a router you really can’t. You could limit the amount of connections but that is really a crapshoot

This was discussed here some time ago. I guess the thread is archived somewhere.

If you check the TTL on packets coming from the network you can delete any that have already traversed a router as they will show a lower value.

Regards

Andrew

how can one check the TTL on packets coming from the network?

It can be done using Iptables…

http://www.linuxsecurity.com/resource_files/firewalls/IPTables-Tutorial/iptables-tutorial.html#TTLMATCH

But maybe some experts here can show us how you do that on RouterOS? Can it be done using RouterOS?