nanog mailing list archives
Re: maximum ipv4 bgp prefix length of /24 ?
From: Willy Manga <mangawilly () gmail com>
Date: Thu, 12 Oct 2023 05:53:43 +0400
. 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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Current thread:
- Re: maximum ipv4 bgp prefix length of /24 ?, (continued)
- Re: maximum ipv4 bgp prefix length of /24 ? Geoff Huston (Oct 09)
- Re: maximum ipv4 bgp prefix length of /24 ? Delong.com via NANOG (Oct 10)
- Re: maximum ipv4 bgp prefix length of /24 ? Willy Manga (Oct 07)
- Re: maximum ipv4 bgp prefix length of /24 ? Mark Tinka (Oct 07)
- Re: maximum ipv4 bgp prefix length of /24 ? Matthew Petach (Oct 07)
- Re: maximum ipv4 bgp prefix length of /24 ? Delong.com via NANOG (Oct 10)
- Re: maximum ipv4 bgp prefix length of /24 ? Matthew Petach (Oct 10)
- Re: maximum ipv4 bgp prefix length of /24 ? Delong.com via NANOG (Oct 10)
- Re: maximum ipv4 bgp prefix length of /24 ? Willy Manga (Oct 10)
- Re: maximum ipv4 bgp prefix length of /24 ? Delong.com via NANOG (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Willy Manga (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Delong.com via NANOG (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Dale W. Carder (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Delong.com via NANOG (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Dale W. Carder (Oct 12)
- Re: maximum ipv4 bgp prefix length of /24 ? Willy Manga (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Owen DeLong via NANOG (Oct 11)
- Re: maximum ipv4 bgp prefix length of /24 ? Willy Manga (Oct 12)
- Re: maximum ipv4 bgp prefix length of /24 ? Owen DeLong via NANOG (Oct 12)