Hello, can any one assist me on how to deploy BGP on a network with two different ISP. ISP A has a client router on the network and ISP B serve as backup with a client router on the same network, which made router A and B. The client wanted a situation when ISP A goes down ISP B can substitute automatically to avoid down time.
Quick question, are you advertising an ip range that you own or is there two internet links in your office from two different carriers with their IP addressing?
If we are talking about two seperate ISP routers with their own different IP's from the ISP (not you advertising your own addresses) then what John suggested is your best bet. Setup two default routes one with a higher cost and apply a track object to the primary.
If you have your own blcok of IP's that you wish to advertise to two different ISP's there are a few ways to accomplish this.
1) Conditional advertisements (my personal favorite)
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.