nanog mailing list archives

ODP: maximum ipv4 bgp prefix length of /24 ?


From: Marcin Gondek <drixter () e-utp net>
Date: Fri, 29 Sep 2023 06:44:13 +0000

Hi,

For testing/research take a look on dn42.net.

Thanks,

--
Marcin Gondek / Drixter
http://fido.e-utp.net/
AS56662
________________________________
Od: NANOG <nanog-bounces+drixter=e-utp.net () nanog org> w imieniu użytkownika VOLKAN SALİH <volkan.salih.06 () gmail 
com>
Wysłane: czwartek, 28 września 2023 23:25
Do: nanog () nanog org <nanog () nanog org>
Temat: maximum ipv4 bgp prefix length of /24 ?


hello,

I believe, ISPs should also allow ipv4 prefixes with length between /25-/27 instead of limiting maximum length to /24..

I also believe that RIRs and LIRs should allocate /27s which has 32 IPv4 address. considering IPv4 world is now mostly 
NAT'ed, 32 IPv4s are sufficient for most of the small and medium sized organizations and also home office workers like 
youtubers, and professional gamers and webmasters!

It is because BGP research and experiment networks can not get /24 due to high IPv4 prices, but they have to get an 
IPv4 prefix to learn BGP in IPv4 world.

What do you think about this?

What could be done here?

Is it unacceptable; considering most big networks that do full-table-routing also use multi-core routers with lots of 
RAM? those would probably handle /27s and while small networks mostly use default routing, it should be reasonable to 
allow /25-/27?

Thanks for reading, regards..

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