Finding asymmetric path

ML ml at
Sat Nov 28 04:14:18 UTC 2009

Randy Bush wrote:
>> I'm reasonable certain a customer of ours who is using one of our 
>> netblocks is using a different reverse path to reach us.  How might I 
>> figure out who is allowing them to source traffic from IPs that belong 
>> to us?
> you are implying that they are not allowed to multi-home using the ip
> space you have assigned to them.  good way to lose a customer.
> randy

Does it count as multihoming when we are the only ones announcing the space?

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