nanog mailing list archives
Re: Understanding impact of RPKI and ROA on existing advertisements
From: Samuel Jackson <bobin.public () gmail com>
Date: Tue, 1 Nov 2022 11:46:04 -0700
Thanks everyone for your inputs. So bottomline setup RPKI and setup ROA's for all our subnets being advertised. Much of this is legacy and has too many unknowns, being handed down networks without documentation also does not help. Thanks, Sam On Tue, Nov 1, 2022 at 9:07 AM heasley <heas () shrubbery net> wrote:
Tue, Nov 01, 2022 at 12:01:46PM -0400, Jon Lewis:One danger with RPKI, is shooting yourself (or customers) in the foot by creating too general a ROA. i.e. Suppose you have an ARIN /20. Youhavea multihomed customer to whom you've assigned a /24 from your /20. You create a ROA for the /20 saying your ASN is authorized to originate your /20. Now that customer /24 has become an RPKI-invalid, and the customer may find that their other provider is filtering their /24 advertisement.ie: you must also create roa(s) for your bgp customer's more specific(s) of your aggregate.
Current thread:
- Understanding impact of RPKI and ROA on existing advertisements Samuel Jackson (Nov 01)
- RE: Understanding impact of RPKI and ROA on existing advertisements Kevin Burke (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements Alex Band (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements Jon Lewis (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements heasley (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements Samuel Jackson (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements Randy Bush (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements Josh Luthman (Nov 02)
- Re: Understanding impact of RPKI and ROA on existing advertisements Jon Lewis (Nov 01)
- Re: Understanding impact of RPKI and ROA on existing advertisements heasley (Nov 02)
- Re: Understanding impact of RPKI and ROA on existing advertisements Owen DeLong via NANOG (Nov 02)
- Re: Understanding impact of RPKI and ROA on existing advertisements jim deleskie (Nov 02)
- <Possible follow-ups>
- RE: Understanding impact of RPKI and ROA on existing advertisements Jakob Heitz (jheitz) via NANOG (Nov 03)
- Re: Understanding impact of RPKI and ROA on existing advertisements Randy Bush (Nov 03)