maximum ipv4 bgp prefix length of /24 ?

Thu Oct 12 01:53:43 UTC 2023

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On 11/10/2023 22:29, Delong.com wrote:
>[...]
>> Yes, but in that scenario any advertisements between /32 and /36 from that prefix originated by AS65500 are *valid* . That's why "ROAs should be as precise as possible, meaning they should match prefixes as announced in BGP" [1]
> 
> You completely ignored my statement of the need for appropriate AS-0 ROAs to block those.

I did not want to comment because you can go down that path *and* you 
will assume everyone doing ROV will consider AS0 ROAs as well.

IMHO the bare minimum is to cover your advertisements with a ROA as 
precise as possible.

-- 
Willy Manga
@ongolaboy
https://ongola.blogspot.com/
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