Pradosh Mohapatra (pmohapat) wrote:
> | > What if: when "I have been allocated 203.10.61.0/24", I 
> | issue an ROA 
> | > for the same with my origin AS? Doesn't that automatically 
> | mean that 
> | > all the advertisements of the prefix from another origin AS are 
> | > automatically invalid?
> | 
> | no, not if roas exist for them too.  while having the same 
> | prefix announced by multiple ass is unusual, it is valid 
> | practice.  think anycast.
> 
> Agreed. What I meant is that existence of ROA(s) should be 
> sufficient to detect invalid uses/filter invalid BGP announcements.

of course

randy
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