09-22-2003 04:01 AM - edited 03-02-2019 10:30 AM
How can I filter inbound traffic from specific ISP's. I have two upstream ISP (ISP1 and ISP2), can I prepend my AS to some AS behind ISP2 but not all AS behind ISP2?
There is one AS behind ISP2 that I want it to choose ISP1 path to my AS, I want it to filter by not affecting other AS. How to do it?
Any other BGP filtering for manipulating incoming traffic beside prepending?
Thanks in advance.
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09-22-2003 04:36 AM
Hi,
I'm afraid there is no way to achieve this.
You will need to either talk to ISP2 or to the administrator of the AS behind the ISP2.
Regards,
Chris
09-22-2003 04:36 AM
Hi,
I'm afraid there is no way to achieve this.
You will need to either talk to ISP2 or to the administrator of the AS behind the ISP2.
Regards,
Chris
09-22-2003 06:14 AM
I think so also. Just checking if someone have made a tweaking or workaround to do that (but I think that's impossible).
Hope in the future BGP in Cisco can do it. It will give more flexibility (and money).
Thanks.
09-22-2003 11:49 AM
You might be able by adding a community to the route that tells the ISP to do the as path prepend on certain borders, or not advertise a route along certain border. Talk to your ISP and see if they have filters of this type, based on communities, configured on their routers.
Russ.W
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