Multihoming with Cisco 3640 router questions
Posted on 2008-10-29
I currently have a Cisco 3640 router and 3 T1's in a multilink PPP configuration from my primary ISP. I recently added 2 T1's also in a multilink PPP configuration from a secondary provider. I obtained an ASN and we configured BGP to run over the MLPPP interface with both providers. I am receiving default routes from both ISP's
I have 2 class C address blocks and 2 partial address blocks from the primary ISP. I want to configure the router to send traffic on the 2 Class C blocks thru the secondary provider upon failure of the first.
The secondary provider is configured to allow me to announce the 2 class C's thru their network.
The first thing I am not sure of, is if the Cisco 3640 router is capable of doing this efficiently, because if it is not, I need to figure out what router (that I can afford thru ebay ;) ) I would need.
If this router is capable, I am not sure how to configure the BGP session to do this.
I would also appreciate an explanation of any code because while I understand basic cisco programming, we are entering an area where I don't understand the commands and what they specifically do internally. I'd like to understand that.
Thank you for your time!