[afnog] Private IP Filters in bgp

[Iñigo Ortiz de Urbina]

On Mon, May 28, 2012 at 8:11 AM, Mark Tinka <mark.tinka at seacom.mu> wrote:
> On Monday, May 28, 2012 07:42:19 AM Randy Bush wrote:
>
>> sorry, i guess i should have pointed that out.
>>
>> anyone got a good v6 bogon list?  mine has not been kept
>> up to date. it should include
>>     2002:a40::/48 to 2002:a7f:ffff::/48
>> the 6to4 disease
>
> I've been using this one (massively relaxed) for some time
> now, and adding to it rather slowly based on push-back from
> the wild (beware, Junossss syntax, but should be easy to
> understand):
>
> policy-statement upstreams-in6 {
>        term 10 {
>            from {
>                route-filter ::/0 exact;
>                route-filter ::/8 upto /128;
>                route-filter 3ffe::/16 upto /128;
>                route-filter 2001::/32 prefix-length-range /33-/128;
>                route-filter 2001:db8::/32 upto /128;
>                route-filter <your:own:allocation>::/32 upto /128;
>                route-filter 2002::/16 prefix-length-range /17-/128;
>                route-filter fc00::/7 upto /128;
>                route-filter fe00::/9 upto /128;
>                route-filter fe80::/10 upto /128;
>                route-filter ff00::/8 upto /128;
>            }
>            then reject;
>        }
>        term 999 {
>            from {
>                route-filter ::/0 upto /48;
>            }
>            then accept;
>        }
>        then reject;
>    }
>
> However, I've also been tracking Gert Döring's work in this
> area, and below is a link to his page where he maintains
> two lists of IPv6 control plane filters; relaxed and strict:
>
>        http://www.space.net/~gert/RIPE/ipv6-filters.html
>

Gert's work, though impaccable, seems outdated (at least on that
website). What are your opinions on getting a bogon feed [1] through
BGP [2]? Cymru claims to have it current up to 27 April 2012.

There is a changelog available [3], as well as a v6 feed [4].

[1] http://www.team-cymru.org/Services/Bogons/
[2] http://www.team-cymru.org/Services/Bogons/bgp.html
[3] http://www.team-cymru.org/Services/Bogons/changelog.html
[4] http://www.team-cymru.org/Services/Bogons/fullbogons-ipv6.txt


> Cheers,
>
> Mark.
>
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