The best way to block the P2p traffic and stop downloading some specific extensions is to configure CBAC ( Context based access list) on your cisco routing box.Rate the post if it works out i your case.
You have a software named Netflow Analyser which gives a detailed report on the traffic pattern in a LAN. BY using this u can get the amount of traffic flowing towards any particular IP Address in the network and also can view the service type. i.e ....
What i understanf from ur scenario is that ur outbound traffic towards the internet is taking the ADSL link as the primary and the ISDN link as the secondary link.Now , u want ur traffic coming from 10.0.0.0/24 network to always take the ADSL link to...
The other way out is to run any dynamic routing protocol. In ur case, as i presume, there are small number of network devices, the best way is to run RIP on all the available links towards a particular destination.
See....in this case , you will have to configure 2 virtual links to maintain full recahability between the routers in case of any link failures.In case the link between PE2 and Router2 fails:-============================================One virtual li...
