nanog mailing list archives

Re: Advantages and disadvantages of legacy assets


From: owen--- via NANOG <nanog () nanog org>
Date: Wed, 22 Nov 2023 11:16:37 -0800

It’s recently come to my attention that I must stand partially corrected in what I said below.

Apparently, Tata is rejecting routes that have neither RPKI nor an RIR-based IRR record created after 1993.

This means that virtually all legacy holders who change IRRs or make any of a number of other possible updates to their 
IRR data will be unreachable to single-homed Tata customers (and unable to reach them).

This unfortunate choice by Tata is likely to become a trend in the future, but I figured it would be several more years 
before that happened. In fact, I was hoping it wouldn’t really take shape in a meaningful way until IPv4 lost its 
relevance.

Unfortunately, Tata has decided to take the lead in disconnecting legacy prefix holders and pushing the RIR contract 
agenda.

Owen


On Nov 20, 2023, at 12:25, owen--- via NANOG <nanog () nanog org> wrote:

The only advantage is not being subject to an RIR contract and not paying annual fees. Especially with the fee 
structure games ARIN has been playing over the last decade or so.

I made the mistake of bringing my legacy resources under ARIN LRSA contract once upon a time. I ended up transferring 
them to RIPE Non-Contract in order to get out from under that arrangement.

While you can’t get RPKI without paying annual fees, you can get IRR services, just not from ARIN.

You can use altdb as an IRR for free with legacy space without any issues at all.

It’s unlikely that lack of RPKI will be a significant drawback for the foreseeable future.

Worst case, if need arises, transfer your space to RIPE and make arrangements with a RIPE LIR to “sponsor” your 
prefixes. This is usually around 70+EU per year to the sponsoring LIR. Prices vary greatly, so be prepared to 
negotiate.

Owen


On Nov 20, 2023, at 10:59, Eric Dugas via NANOG <nanog () nanog org> wrote:

Greetings!

Let's say you inherit legacy assets (ASN & IPv4 netblock), what are the first advantages that come to mind (beside 
not having to pay annual fees).

Any disadvantages? The ones I can think of is the lack of RIR routing security services (in the ARIN region at 
least). No IRR, no RPKI at all.

Eric



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