I plan on being the 'redundant' link for a customer that has a class C assigned by the primary provider. I planned on just using a /30 to peer and advertise that I'll take his class C and route it to him at the other end of the /30.
The Boss was discussing the project at a recent conference and has told me that someone with ARIN suggested the customer would need a class C from each of the providers. Will I need to allocate an entire class C just to peer and get his primary C routed to him over my network in a failover? Sounds way wrong to me.
I don't get the first sentence. You can't advertise the Class C that the Primary Provider assigned to the Customer. Because it belongs to the Primary Provider, it does not belongs to the Customer or to you.
I think the second sentence equates to this.
- The Primary and Secondary Provider will assign the Customer one Class C each.
- The Primary and Secondary Provider has to agree which Private ASN to allow the Customer to use.
However, I don't get to see the need for BGP in this case. The BGP is needed if the Customer has its own IP Block but no ASN and need to ride on the two ISPs ASN.
But you still not supposed to advertise the Customer Class C because it belongs to SPRINT - unless SPRINT permits you to do that. Take note that it is not allocated solely to the customer from NIC (ARIN, RIPE, APNIC, LACNIC, AFRINIC). I also suspect that the ASN is a Private ASN.
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.