Finding asymmetric path

Randy Bush randy at
Sat Nov 28 04:08:40 UTC 2009

> 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.


More information about the NANOG mailing list