An enterprise network manager has decided to dual-home two service providers for Internet connectivity. In order to provide optimal outbound routing, the full Internet routing table will be accepted from each provider.
The enterprise has obtained address space and an AS to use in connecting to the Internet.
What is the simplest mechanism the network manager can use to prevent it from becoming a transit between the two service providers?
A . Build a route filter that only allows the specific networks the enterprise owns to be advertised to each of the service providers.
B . Build a traffic filter that only allows traffic originating from the specific networks the enterprise owns to be forwarded towards the service providers.
C . Build a route filter that only allows networks with an empty AS path to be advertised to each of the service providers.
D . Build a route filter that only allows networks which are tagged with the LOCAL community to be advertised to each of the service providers.
Answer: C
Leave a Reply