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Re: Your Input Needed: Can ROA Replace LOA? – Short Survey (7 mins)


From: Brian Knight via NANOG <nanog () nanog org>
Date: Thu, 16 Nov 2023 11:54:37 -0600

On 2023-11-15 21:47, Christopher Hawker wrote:

Hello everyone,

Aftab Siddiqui is currently exploring the possibility of using Route Object Authorisations (ROAs) as a potential replacement to LOAs. Separate to this (and unknowing of Aftab's research), I had started a discussion on the RPKI Community guild on Discord (https://discord.gg/9jYcqpbdRE) discussing the usage of ROAs instead of LOAs.

An LOA, or "Letter of Authority" / "Letter of Authorization," is a formal document granting permission for third parties to take specific actions regarding network resources or services. In the service provider industry, its primary use is for advertising address resources (IPv4/v6 and ASN). When an organization intends to announce its IP prefixes through its own or a transit provider's ASN to the global internet, it typically needs to provide an LOA to their transit provider, confirming their custodianship or ownership of the resources.

I've found WHOIS is a good enough resource for this purpose. The SPs that are delegating prefixes are good about using SWIP to show assignment.

North American SPs are motivated to keep SWIP assignments up to date because of ARIN's requirement to demonstrate usage of IP resources for IP block transfers.

I think I've needed to request an LOA from a customer for this purpose just once in the past 10 years because the SWIP wasn't done. IIRC the assigning provider did a SWIP instead.


RPKI ROA, stands for "Resource Public Key Infrastructure Route Origin Authorization," is part of a security framework designed to validate the authenticity of internet routing information. It involves a digitally signed object that specifies which Autonomous Systems (ASes) are permitted to announce specific IP address prefixes.

Could you please take a moment to fill out our brief survey? Your feedback will play a crucial role in our understanding of this topic.

Survey Link: https://www.surveymonkey.com/r/JCHLWBB

Thanks,
Christopher Hawker

-Brian


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