Route server IPv6 avoid_martians
Job Snijders
job at instituut.net
Thu Aug 20 00:56:05 CEST 2015
On Thu, Aug 20, 2015 at 12:44:18AM +0200, Job Snijders wrote:
> On Wed, Aug 19, 2015 at 05:34:49PM -0500, Jonathan Stewart wrote:
> > This page describes an IPv4 route-server:
> > https://gitlab.labs.nic.cz/labs/bird/wikis/Simple_route_server
> >
> > I like the function avoid_martians(), and use it (mine's even been
> > expanded a bit). I'd like to implement something similar for IPv6.
>
> here you go:
>
> function avoid_martians()
> prefix set martians;
> {
> martians = [
> 0000::/8{8,128}, 0200::/7{7,128}, 2001::/32{32,128},
> 2001:db8::/32{32,128}, 2002::/16{16,128}, 3ffe::/16{16,128},
> 5f00::/8{8,128}, fc00::/7{7,128}, fe80::/10{10,128},
> fec0::/10{10,128}, ff00::/8{8,128} ];
> if net ~ martians then return true;
> return false;
> }
The above is not complete, but you get the gist of it, here is a more
current overview in BIRD format:
0000::/8{8,128}, # loopback, unspecified, v4-mapped
0064:ff9b::/96{96,128}, # IPv4-IPv6 Translat. [RFC6052]
0100::/8{8,128}, # reserved for Discard-Only Address Block [RFC6666]
0200::/7{7,128}, # Reserved by IETF [RFC4048]
0400::/6{6,128}, # Reserved by IETF [RFC4291]
0800::/5{5,128}, # Reserved by IETF [RFC4291]
1000::/4{4,128}, # Reserved by IETF [RFC4291]
2001::/32{33,128}, # Teredo prefix [RFC4380]
2001:0002::/48{48,128}, # Benchmarking [RFC5180]
2001:0003::/32{32,128}, # Automatic Multicast Tunneling [RFC7450]
2001:10::/28{28,128}, # Deprecated ORCHID [RFC4843]
2001:20::/28{28,128}, # ORCHIDv2 [RFC7343]
2001:db8::/32{32,128}, # NON-ROUTABLE range to be used for documentation purpose [RFC3849]
2002::/16{17,128}, # 6to4 prefix [RFC3068]
3ffe::/16{16,128}, # used for the 6bone but was returned [RFC5156]
4000::/3{3,128}, # Reserved by IETF [RFC4291]
5f00::/8{8,128}, # used for the 6bone but was returned [RFC5156]
6000::/3{3,128}, # Reserved by IETF [RFC4291]
8000::/3{3,128}, # Reserved by IETF [RFC4291]
a000::/3{3,128}, # Reserved by IETF [RFC4291]
c000::/3{3,128}, # Reserved by IETF [RFC4291]
e000::/4{4,128}, # Reserved by IETF [RFC4291]
f000::/5{5,128}, # Reserved by IETF [RFC4291]
f800::/6{6,128}, # Reserved by IETF [RFC4291]
fc00::/7{7,128}, # Unique Local Unicast [RFC4193]
fe80::/10{10,128}, # Link Local Unicast [RFC4291]
fec0::/10{10,128}, # Reserved by IETF [RFC3879]
ff00::/8{8,128} # Multicast [RFC4291]
based on:
http://www.iana.org/assignments/ipv6-address-space/ipv6-address-space.xml
http://www.iana.org/assignments/ipv6-unicast-address-assignments/ipv6-unicast-address-assignments.xml
Kind regards,
Job
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