Mailing List Archive

Hi Gabriel,

On Thu, 21 Mar 2024 at 15:02, Gabriel Terry <gterry@acentek.net> wrote:
>
> All,
>
>
>
> I was researching BOGON prefixes and found a reference from IANA listing special-purpose addresses, URLs listed below. Based on my understanding of the list I think I should be able to block all of the entries from my upstream peerings without affecting normal internet traffic.

You should look at the values in the globally reachable column. Some
of the entries should be globally reachable, barring your own local
policy. For instance, many networks want to allow access to the AS112
service.

Regards,

Leo

Hi Gabriel,

for v6 you may find the following helpful:

https://theinternetprotocolblog.wordpress.com/2020/01/15/some-notes-on-ipv6-bogon-filtering/

cheers

Enno


On Thu, Mar 21, 2024 at 07:20:53PM +0000, Gabriel Terry wrote:
> All,
>
> I was researching BOGON prefixes and found a reference from IANA listing special-purpose addresses, URLs listed below. Based on my understanding of the list I think I should be able to block all of the entries from my upstream peerings without affecting normal internet traffic. I assume that there would only be special scenarios that the addresses listed in the special-purpose entry would be used. I am interested to hear what others are doing when it comes to blocking BOGON NLRI from their upstream BGP peerings. If anyone has any insight into this please let me know your thoughts, I would love to discuss more on the topic.
>
> URLs:
> https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml
> https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml
>
> Thanks,
>
> Gabriel L. Terry
>

--
Enno Rey

Cell: +49 173 6745902
Twitter: @Enno_Insinuator
IPv6 Blog: https://theinternetprotocolblog.wordpress.com

bogons.cymru.com has been around as a BGP feed for a long long time.

https://www.team-cymru.com/bogon-networks

From: NANOG <nanog-bounces+ops.lists=gmail.com@nanog.org> on behalf of Gabriel Terry <gterry@acentek.net>
Date: Friday, 22 March 2024 at 3:56?PM
To: nanog@nanog.org <nanog@nanog.org>
Subject: v4 and v6 BOGON list
All,

I was researching BOGON prefixes and found a reference from IANA listing special-purpose addresses, URLs listed below. Based on my understanding of the list I think I should be able to block all of the entries from my upstream peerings without affecting normal internet traffic. I assume that there would only be special scenarios that the addresses listed in the special-purpose entry would be used. I am interested to hear what others are doing when it comes to blocking BOGON NLRI from their upstream BGP peerings. If anyone has any insight into this please let me know your thoughts, I would love to discuss more on the topic.

URLs:
https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml
https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml

Thanks,

Gabriel L. Terry

+1

On 3/22/24 11:28, Suresh Ramasubramanian wrote:
> bogons.cymru.com has been around as a BGP feed for a long long time.
>
> https://www.team-cymru.com/bogon-networks
> <https://www.team-cymru.com/bogon-networks>
>
> *From: *NANOG <nanog-bounces+ops.lists=gmail.com@nanog.org> on behalf of
> Gabriel Terry <gterry@acentek.net>
> *Date: *Friday, 22 March 2024 at 3:56?PM
> *To: *nanog@nanog.org <nanog@nanog.org>
> *Subject: *v4 and v6 BOGON list
>
> All,
>
> I was researching BOGON prefixes and found a reference from IANA listing
> special-purpose addresses, URLs listed below. Based on my understanding
> of the list I think I should be able to block all of the entries from my
> upstream peerings without affecting normal internet traffic. I assume
> that there would only be special scenarios that the addresses listed in
> the special-purpose entry would be used. I am interested to hear what
> others are doing when it comes to blocking BOGON NLRI from their
> upstream BGP peerings. If anyone has any insight into this please let me
> know your thoughts, I would love to discuss more on the topic.
>
> URLs:
>
> https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml <https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml>
>
> https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml <https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml>
>
> *Thanks,*
>
> *Gabriel L. Terry*
>